2026 Ram 3500 Drivetrain Parts: OEM & Replacement (62 Parts)

62 Drivetrain parts are listed for the 2026 Ram 3500, in 20 part types, covering both the 6.4L V8 and the 6.7L L6 DIESEL Turbocharged. Each one has a brand, a manufacturer part number and notes that say where it fits.

On the 2026 Ram 3500, the drivetrain system moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware. Most of the listed parts are Drive Shaft (7 parts), Axle Shaft (6 parts) and Axle / Differential Assembly (5 parts). The other 17 part types cover the remaining 44 parts.

4WD Actuator

Brand	Part Number	Markets	Notes	Buy
AAM Fits: all 2026 3500 engines	40250500	🇺🇸 US 🇨🇦 CA		View on Amazon

This table covers the actuators that engage four-wheel drive at the transfer case or axle. Typical signs include a door or range that will not move, or a click with no motion. Confirm the command signal before replacing the actuator — a failed module looks the same.

Axle / Differential Assembly

Brand	Part Number	Markets	Notes	Buy
MOPAR Fits: all 2026 3500 engines	68545293AA	🇺🇸 US 🇨🇦 CA	Fits Rear11.50 Rear Axle, 3.73 Rear Axle Ratio, Anti-Spin Differential Rear Axle Fitment notes — MOPAR 68545293AA Fits: Rear11.50 Rear Axle, 3.73 Rear Axle Ratio, Anti-Spin Differential Rear AxleExc. Auto Level Rear Air SuspensionCrew Cab8' Box or: Rear11.50 Rear Axle, 3.73 Rear Axle Ratio, Anti-Spin Differential Rear AxleExc. Auto Level Rear Air SuspensionRegular Cab8 Foot Bed or: Rear11.50 Rear Axle, 3.73 Rear Axle Ratio, Anti-Spin Differential Rear AxleExc. Auto Level Rear Air SuspensionCrew Cab Wheelbase 2	View on Amazon
MOPAR Fits: all 2026 3500 engines	68545294AA	🇺🇸 US 🇨🇦 CA	Fits Rear11.50 Rear Axle, 4.10 Rear Axle Ratio, Anti-Spin Differential Rear Axle Fitment notes — MOPAR 68545294AA Fits: Rear11.50 Rear Axle, 4.10 Rear Axle Ratio, Anti-Spin Differential Rear AxleExc. Auto Level Rear Air SuspensionCrew Cab8' Box or: Rear11.50 Rear Axle, 4.10 Rear Axle Ratio, Anti-Spin Differential Rear AxleExc. Auto Level Rear Air SuspensionRegular Cab8 Foot Bed or: Rear11.50 Rear Axle, 4.10 Rear Axle Ratio, Anti-Spin Differential Rear AxleExc. Auto Level Rear Air SuspensionCrew Cab Wheelbase 2	View on Amazon
MOPAR Fits: all 2026 3500 engines	68545295AA	🇺🇸 US 🇨🇦 CA	Fits Rear11.50 Rear Axle, 3.73 Rear Axle Ratio, Anti-Spin Differential Rear Axle Fitment notes — MOPAR 68545295AA Fits: Rear11.50 Rear Axle, 3.73 Rear Axle Ratio, Anti-Spin Differential Rear AxleExc. Auto Level Rear Air SuspensionMega CabHD 4WD or: Rear11.50 Rear Axle, 3.73 Rear Axle Ratio, Anti-Spin Differential Rear AxleExc. Auto Level Rear Air SuspensionRegular Cab8 Foot BedHD 4WD or: Rear11.50 Rear Axle, 3.73 Rear Axle Ratio, Anti-Spin Differential Rear AxleExc. Auto Level Rear Air SuspensionCrew Cab8' BoxHD 4WD or: Rear11.50 Rear Axle, 3.73 Rear Axle Ratio, Anti-Spin Differential Rear AxleExc. Auto Level Rear Air SuspensionCrew Cab Wheelbase 2HD 4WD	View on Amazon
MOPAR Fits: all 2026 3500 engines	68545296AA	🇺🇸 US 🇨🇦 CA	Fits Rear11.50 Rear Axle, 3.73 Rear Axle Ratio, Anti-Spin Differential Rear Axle, Auto Level Rear Air Suspension Fitment notes — MOPAR 68545296AA Fits: Rear11.50 Rear Axle, 3.73 Rear Axle Ratio, Anti-Spin Differential Rear Axle, Auto Level Rear Air SuspensionMega CabHD 4WD or: Rear11.50 Rear Axle, 3.73 Rear Axle Ratio, Anti-Spin Differential Rear Axle, Auto Level Rear Air SuspensionRegular Cab8 Foot BedHD 4WD or: Rear11.50 Rear Axle, 3.73 Rear Axle Ratio, Anti-Spin Differential Rear Axle, Auto Level Rear Air SuspensionCrew Cab8' BoxHD 4WD or: Rear11.50 Rear Axle, 3.73 Rear Axle Ratio, Anti-Spin Differential Rear Axle, Auto Level Rear Air SuspensionCrew Cab Wheelbase 2HD 4WD	View on Amazon
MOPAR Fits: all 2026 3500 engines	68545297AA	🇺🇸 US 🇨🇦 CA	Fits Rear11.50 Rear Axle, 4.10 Rear Axle Ratio, Anti-Spin Differential Rear Axle Fitment notes — MOPAR 68545297AA Fits: Rear11.50 Rear Axle, 4.10 Rear Axle Ratio, Anti-Spin Differential Rear AxleExc. Auto Level Rear Air SuspensionMega CabHD 4WD or: Rear11.50 Rear Axle, 4.10 Rear Axle Ratio, Anti-Spin Differential Rear AxleExc. Auto Level Rear Air SuspensionRegular Cab8 Foot BedHD 4WD or: Rear11.50 Rear Axle, 4.10 Rear Axle Ratio, Anti-Spin Differential Rear AxleExc. Auto Level Rear Air SuspensionCrew Cab8' BoxHD 4WD or: Rear11.50 Rear Axle, 4.10 Rear Axle Ratio, Anti-Spin Differential Rear AxleExc. Auto Level Rear Air SuspensionCrew Cab Wheelbase 2HD 4WD	View on Amazon

This table covers the Axle / Differential assemblies.

Axle Housing

Brand	Part Number	Markets	Notes	Buy
MOPAR Fits: all 2026 3500 engines	68460121AA	🇺🇸 US 🇨🇦 CA	Fits Rear12.0" Rear Axle, 3.42 Rear Axle Ratio, Anti-Spin Differential Rear Axle Fitment notes — MOPAR 68460121AA Fits: Rear12.0" Rear Axle, 3.42 Rear Axle Ratio, Anti-Spin Differential Rear AxleExc. Auto Level Rear Air SuspensionCrew Cab8' Box or: Rear12.0" Rear Axle, 3.42 Rear Axle Ratio, Anti-Spin Differential Rear AxleExc. Auto Level Rear Air SuspensionRegular Cab, 8 Foot Bed or: Rear12.0" Rear Axle, 3.42 Rear Axle Ratio, Anti-Spin Differential Rear AxleExc. Auto Level Rear Air SuspensionCrew Cab Wheelbase 2	View on Amazon
MOPAR Fits: all 2026 3500 engines	68460122AA	🇺🇸 US 🇨🇦 CA	Fits Rear226mm Rear Axle, 3.42 Rear Axle Ratio, Anti-Spin Differential Rear Axle Fitment notes — MOPAR 68460122AA Fits: Rear226mm Rear Axle, 3.42 Rear Axle Ratio, Anti-Spin Differential Rear AxleExc. Auto Level Rear Air SuspensionCrew Cab8' BoxHD 4WD or: Rear226mm Rear Axle, 3.42 Rear Axle Ratio, Anti-Spin Differential Rear AxleExc. Auto Level Rear Air SuspensionMega CabHD 4WD or: Rear226mm Rear Axle, 3.42 Rear Axle Ratio, Anti-Spin Differential Rear AxleExc. Auto Level Rear Air SuspensionRegular Cab, 8 Foot BedHD 4WD or: Rear226mm Rear Axle, 3.42 Rear Axle Ratio, Anti-Spin Differential Rear AxleExc. Auto Level Rear Air SuspensionCrew Cab Wheelbase 2HD 4WD	View on Amazon
MOPAR Fits: all 2026 3500 engines	68460123AB	🇺🇸 US 🇨🇦 CA	Fits Rear226mm Rear Axle, 3.42 Rear Axle Ratio, Anti-Spin Differential Rear Axle, Auto Level Rear Air Suspension Fitment notes — MOPAR 68460123AB Fits: Rear226mm Rear Axle, 3.42 Rear Axle Ratio, Anti-Spin Differential Rear Axle, Auto Level Rear Air SuspensionCrew Cab8' BoxHD 4WD or: Rear226mm Rear Axle, 3.42 Rear Axle Ratio, Anti-Spin Differential Rear Axle, Auto Level Rear Air SuspensionMega CabHD 4WD or: Rear226mm Rear Axle, 3.42 Rear Axle Ratio, Anti-Spin Differential Rear Axle, Auto Level Rear Air SuspensionRegular Cab, 8 Foot BedHD 4WD or: Rear226mm Rear Axle, 3.42 Rear Axle Ratio, Anti-Spin Differential Rear Axle, Auto Level Rear Air SuspensionCrew Cab Wheelbase 2HD 4WD	View on Amazon
MOPAR Fits: all 2026 3500 engines	68460124AA	🇺🇸 US 🇨🇦 CA	Fits Rear226mm Rear Axle, 3.42 Rear Axle Ratio, Anti-Spin Differential Rear Axle Fitment notes — MOPAR 68460124AA Fits: Rear226mm Rear Axle, 3.42 Rear Axle Ratio, Anti-Spin Differential Rear AxleExc. Auto Level Rear Air SuspensionCrew Cab8' Box or: Rear226mm Rear Axle, 3.42 Rear Axle Ratio, Anti-Spin Differential Rear AxleExc. Auto Level Rear Air SuspensionRegular Cab, 8 Foot Bed or: Rear226mm Rear Axle, 3.42 Rear Axle Ratio, Anti-Spin Differential Rear AxleExc. Auto Level Rear Air SuspensionCrew Cab Wheelbase 2	View on Amazon
MOPAR Fits: all 2026 3500 engines	68460125AA	🇺🇸 US 🇨🇦 CA	Fits Rear12.0" Rear Axle, 3.42 Rear Axle Ratio, Anti-Spin Differential Rear Axle Fitment notes — MOPAR 68460125AA Fits: Rear12.0" Rear Axle, 3.42 Rear Axle Ratio, Anti-Spin Differential Rear AxleExc. Auto Level Rear Air SuspensionCrew Cab8' BoxHD 4WD or: Rear12.0" Rear Axle, 3.42 Rear Axle Ratio, Anti-Spin Differential Rear AxleExc. Auto Level Rear Air SuspensionMega CabHD 4WD or: Rear12.0" Rear Axle, 3.42 Rear Axle Ratio, Anti-Spin Differential Rear AxleExc. Auto Level Rear Air SuspensionRegular Cab, 8 Foot BedHD 4WD or: Rear12.0" Rear Axle, 3.42 Rear Axle Ratio, Anti-Spin Differential Rear AxleExc. Auto Level Rear Air SuspensionCrew Cab Wheelbase 2HD 4WD	View on Amazon

This table covers the Axle housings.

Axle Shaft

Brand	Part Number	Markets	Notes	Buy
AAM Popular Fits: all 2026 3500 engines	40183413K	🇺🇸 US 🇨🇦 CA	Outer Shaft Length: 684.97 mm Fitment notes — AAM 40183413K Outer Shaft Length: 684.97 mm Front Left4WDwith 9.25 (In) Front Axle	View on Amazon
AAM Fits: all 2026 3500 engines	40104193K	🇺🇸 US 🇨🇦 CA	Kit Includes Axle Nut Fitment notes — AAM 40104193K Kit Includes Axle Nut Front Leftwith 9.25 (In) Front Axle	View on Amazon
AAM Fits: all 2026 3500 engines	40104194K	🇺🇸 US 🇨🇦 CA	Kit Includes Axle Nut Fitment notes — AAM 40104194K Kit Includes Axle Nut Front Rightwith 9.25 (In) Front Axle	View on Amazon
AAM Fits: all 2026 3500 engines	40236319	🇺🇸 US 🇨🇦 CA	Outer Shaft Length: 155 mm Fitment notes — AAM 40236319 Outer Shaft Length: 155 mm Front Leftwith 9.25 (In) Front Axle	View on Amazon
MOPAR Fits: all 2026 3500 engines	68672805AA	🇺🇸 US 🇨🇦 CA	Fits RearCab Chassis Fitment notes — MOPAR 68672805AA Fits: RearCab Chassis4.10 Rear Axle Ratio, Anti-Spin Differential Rear Axle, 11.50" Dual Wheels Rear AxleRegular Cab Chassis Wheelbase 1HD 4WD or: RearCab Chassis4.10 Rear Axle Ratio, Anti-Spin Differential Rear Axle, 11.50" Dual Wheels Rear AxleRegular Cab Chassis Wheelbase 2HD 4WD or: RearCab Chassis4.10 Rear Axle Ratio, Anti-Spin Differential Rear Axle, 11.50" Dual Wheels Rear AxleCrew Cab Wheelbase 4HD 4WD or: RearCab ChassisCummins Engine3.42 Rear Axle Ratio, Dual Rear WheelsCrew Cab Wheelbase 4HD 4WD or: RearCab ChassisCummins Engine3.42 Rear Axle Ratio, Dual Rear WheelsRegular Cab Chassis Wheelbase 1HD 4WD or: RearCab ChassisCummins Engine3.42 Rear Axle Ratio, Dual Rear WheelsRegular Cab Chassis Wheelbase 2HD 4WD	View on Amazon
MOPAR Fits: all 2026 3500 engines	68721838AA	🇺🇸 US 🇨🇦 CA	Fits Rear226mm Rear Axle, 3.42 Rear Axle Ratio, Anti-Spin Differential Rear Axle, Auto Level Rear Air Suspension Fitment notes — MOPAR 68721838AA Fits: Rear226mm Rear Axle, 3.42 Rear Axle Ratio, Anti-Spin Differential Rear Axle, Auto Level Rear Air SuspensionCrew Cab8' BoxHD 4WD or: Rear226mm Rear Axle, 3.42 Rear Axle Ratio, Anti-Spin Differential Rear Axle, Auto Level Rear Air SuspensionMega CabHD 4WD or: Rear226mm Rear Axle, 3.42 Rear Axle Ratio, Anti-Spin Differential Rear Axle, Auto Level Rear Air SuspensionRegular Cab8 Foot BedHD 4WD or: Rear226mm Rear Axle, 3.42 Rear Axle Ratio, Anti-Spin Differential Rear AxleExc. Auto Level Rear Air SuspensionCrew Cab8' BoxHD 4WD or: Rear226mm Rear Axle, 3.42 Rear Axle Ratio, Anti-Spin Differential Rear AxleExc. Auto Level Rear Air SuspensionMega CabHD 4WD or: Rear226mm Rear Axle, 3.42 Rear Axle Ratio, Anti-Spin Differential Rear AxleExc. Auto Level Rear Air SuspensionRegular Cab8 Foot BedHD 4WD or: Rear226mm Rear Axle, 3.42 Rear Axle Ratio, Anti-Spin Differential Rear Axle, Auto Level Rear Air SuspensionCrew Cab Wheelbase 2HD 4WD or: Rear226mm	View on Amazon

This table covers the Axle shafts.

Axle Shaft Seal

Brand	Part Number	Markets	Notes	Buy
SKF Fits: all 2026 3500 engines	14474	🇺🇸 US 🇨🇦 CA	Front4WD	View on Amazon

This table covers the seals where an axle shaft exits the housing. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.

Differential Pinion Bearing / Race

Brand	Part Number	Markets	Notes	Buy
AAM Fits: all 2026 3500 engines	40195031	🇺🇸 US 🇨🇦 CA	Inside Diameter: 57.55 mm Fitment notes — AAM 40195031 Inside Diameter: 57.55 mm Rearpinion Head Bearingwith 12.0 (In) Rear Axle	View on Amazon
AAM Fits: all 2026 3500 engines	40265297	🇺🇸 US 🇨🇦 CA	Inside Diameter: 57.55 Fitment notes — AAM 40265297 Inside Diameter: 57.55 Rearpinion Head Bearingwith 12.0 (In) Rear Axle	View on Amazon

This table covers the bearings and races on the differential pinion.

Differential Pinion Flange

Brand	Part Number	Markets	Notes	Buy
MOPAR Fits: 6.4L V8	68450930AC	🇺🇸 US 🇨🇦 CA	Fits HEMI HD EngineFlat flange yoke with damper Fitment notes — MOPAR 68450930AC Fits: HEMI HD EngineFlat flange yoke with damperExc. Dual Rear WheelsCrew Cab Wheelbase 28-SPD Auto 8HP75-LCV TransmissionHD 4WD or: HEMI HD EngineFlat flange yoke with damperRegular Cab, 8 Foot Bed8-SPD Auto 8HP75-LCV TransmissionHD 4WD or: RearHEMI HD EngineFlat flange yoke with damperCrew Cab Crew Cab8' Box8-SPD Auto 8HP75-LCV TransmissionHD 4WD or: RearHEMI HD EngineFlat flange yoke with damperExc. Dual Rear WheelsCrew Cab Wheelbase 28-SPD Auto 8HP75-LCV Transmission or: RearHEMI HD EngineFlat flange yoke with damperRegular Cab, 8 Foot Bed8-SPD Auto 8HP75-LCV Transmission	View on Amazon
MOPAR Fits: 6.4L V8	68533399AA	🇺🇸 US 🇨🇦 CA	Fits FrontCab Chassis Fitment notes — MOPAR 68533399AA Fits: FrontCab ChassisHEMI HD EngineSerrated flange yoke Dual Rear WheelsRegular Cab Chassis Wheelbase 28-SPD Auto 8HP75-LCV TransmissionHD 4WD or: FrontCab ChassisHEMI HD EngineSerrated flange yoke Dual Rear WheelsRegular Cab Chassis Wheelbase 28-SPD ZF Powerline Auto Trans or: FrontCab ChassisHEMI HD EngineSerrated flange yokeCrew Cab Wheelbase 48-SPD Auto 8HP75-LCV TransmissionHD 4WD or: FrontCab ChassisHEMI HD EngineSerrated flange yokeCrew Cab Wheelbase 48-SPD ZF Powerline Auto Trans or: FrontCab ChassisHEMI HD EngineSerrated flange yokeRegular Cab Chassis Wheelbase 18-SPD ZF Powerline Auto Trans	View on Amazon
MOPAR Fits: 6.7L L6 DIESEL Turbocharged	68450961AC	🇺🇸 US 🇨🇦 CA	Fits Cummins engine HO EngineSerrated flange yoke with damper Dual Rear Wheels Fitment notes — MOPAR 68450961AC Fits: Cummins engine HO EngineSerrated flange yoke with damper Dual Rear WheelsMega Cab8-SPD ZF Powerline Automatic TransHD 4WD or: Cummins engine HO EngineSerrated flange yoke with damperExc. Dual Rear WheelsCrew Cab Wheelbase 28-SPD ZF Powerline Automatic TransHD 4WD or: Cummins engine HO EngineSerrated flange yoke with damperExc. Dual Rear WheelsMega Cab8-SPD ZF Powerline Automatic TransHD 4WD or: Cummins engine HO EngineSerrated flange yoke with damper Dual Rear WheelsRegular Cab, 8 Foot Bed8-SPD ZF Powerline Automatic TransHD 4WD or: Cummins engine HO EngineSerrated flange yoke with damperExc. Dual Rear WheelsRegular Cab, 8 Foot Bed8-SPD ZF Powerline Automatic TransHD 4WD or: RearCummins engine HO EngineSerrated flange yoke with damper Dual Rear WheelsCrew Cab Crew Cab8' Box8-SPD ZF Powerline Automatic TransHD 4WD or: RearCummins engine HO EngineSerrated flange yoke with damperCrew Cab Crew Cab8' Box8-SPD ZF Powerline Automatic Trans or: Rear	View on Amazon
MOPAR Fits: 6.7L L6 DIESEL Turbocharged	68533398AA	🇺🇸 US 🇨🇦 CA	Fits Cab ChassisCummins engine Fitment notes — MOPAR 68533398AA Fits: Cab ChassisCummins engineFlat flange YokeExc. Dual Rear WheelsRegular Cab Chassis Wheelbase 18-SPD ZF Powerline Automatic TransHD 4WD or: FrontCab ChassisCummins EngineFlat flange YokeExc. Dual Rear WheelsRegular Cab Chassis Wheelbase 18-SPD ZF Powerline Automatic Trans or: RearCab ChassisCummins EngineExc. Dual Rear WheelsCrew Cab Wheelbase 48-SPD ZF Powerline Automatic TransHD 4WD or: RearCab ChassisCummins EngineExc. Dual Rear WheelsRegular Cab Chassis Wheelbase 18-SPD ZF Powerline Automatic Trans	View on Amazon

This table covers the flanges that connect the driveshaft to the differential pinion.

Differential Rebuild Kit

Brand	Part Number	Markets	Notes	Buy
USA STANDARD GEAR Fits: all 2026 3500 engines	USA12848	🇺🇸 US 🇨🇦 CA	Rear2.267 In. and 1.890 In. Pinion Bearing Journal Diameters Fitment notes — USA STANDARD GEAR USA12848 Rear2.267 In. and 1.890 In. Pinion Bearing Journal Diameterswith AAM 11.5 Rear Differentialwith Differential	View on Amazon

This table covers kits that group the bearings, races and seals for a differential rebuild.

Differential Ring and Pinion

Brand	Part Number	Markets	Notes	Buy
MOPAR Fits: all 2026 3500 engines	68709214AA	🇺🇸 US 🇨🇦 CA	Fits Cab Chassis3.42 Rear Axle Ratio, Anti-Spin Differential Rear Axle, 11.50 Rear Axle Fitment notes — MOPAR 68709214AA Fits: Cab Chassis3.42 Rear Axle Ratio, Anti-Spin Differential Rear Axle, 11.50 Rear AxleRegular Cab Chassis Wheelbase 1HD 4WD or: Cab Chassis3.42 Rear Axle Ratio, Anti-Spin Differential Rear Axle, 11.50 Rear AxleRegular Cab Chassis Wheelbase 2HD 4WD or: Cab Chassis3.42 Rear Axle Ratio, Anti-Spin Differential Rear Axle, 11.50 Rear AxleCrew Cab Wheelbase 4HD 4WD	View on Amazon
MOPAR Fits: all 2026 3500 engines	68731367AB	🇺🇸 US 🇨🇦 CA	Fits 205mm HD Front Axle, 3.42 Rear Axle Ratio, Conventional Differential Front AxleCrew Cab Fitment notes — MOPAR 68731367AB Fits: 205mm HD Front Axle, 3.42 Rear Axle Ratio, Conventional Differential Front AxleCrew Cab8' BoxHD 4WD or: 205mm HD Front Axle, 3.42 Rear Axle Ratio, Conventional Differential Front AxleMega CabHD 4WD or: 205mm HD Front Axle, 3.42 Rear Axle Ratio, Conventional Differential Front AxleRegular Cab8 Foot BedHD 4WD or: 6,000 LB Front Axle, 3.42 Rear Axle Ratio, Conventional Differential Front AxleCrew Cab8' BoxHD 4WD or: 6,000 LB Front Axle, 3.42 Rear Axle Ratio, Conventional Differential Front AxleMega CabHD 4WD or: 6,000 LB Front Axle, 3.42 Rear Axle Ratio, Conventional Differential Front AxleRegular Cab8 Foot BedHD 4WD or: Cab Chassis205mm HD Front Axle, 3.42 Rear Axle Ratio, Conventional Differential Front AxleRegular Cab Chassis Wheelbase 1HD 4WD or: Cab Chassis205mm HD Front Axle, 3.42 Rear Axle Ratio, Conventional Differential Front AxleRegular Cab Chassis Wheelbase 2HD 4WD or: Cab Chassis6,000 LB Front Axle, 3.42 Rear Axle Ratio, Conventional Differen	View on Amazon
MOPAR Fits: all 2026 3500 engines	68731388AB	🇺🇸 US 🇨🇦 CA	Fits 205MM HD Front Axle, 3.73 Rear Axle Ratio, Conventional Differential Front AxleMega Cab Fitment notes — MOPAR 68731388AB Fits: 205MM HD Front Axle, 3.73 Rear Axle Ratio, Conventional Differential Front AxleMega CabHD 4WD or: 205MM HD Front Axle, 3.73 Rear Axle Ratio, Conventional Differential Front AxleRegular Cab8 Foot BedHD 4WD or: 6,000 lb Front Axle, 3.73 Rear Axle Ratio, Conventional Differential Front AxleRegular Cab8 Foot BedHD 4WD or: 205MM HD Front Axle, 3.73 Rear Axle Ratio, Conventional Differential Front AxleCrew Cab8' BoxHD 4WD or: 6,000 lb Front Axle, 3.73 Rear Axle Ratio, Conventional Differential Front AxleCrew Cab8' BoxHD 4WD or: 6,000 lb Front Axle, 3.73 Rear Axle Ratio, Conventional Differential Front AxleMega CabHD 4WD or: 205mm HD Front Axle, 3.73 Rear Axle Ratio, Conventional Differential Front AxleCrew Cab Wheelbase 2HD 4WD or: 6,000 LB Front Axle, 3.73 Rear Axle Ratio, Conventional Differential Front AxleCrew Cab Wheelbase 2HD 4WD	View on Amazon
MOPAR Fits: all 2026 3500 engines	68731389AB	🇺🇸 US 🇨🇦 CA	Fits 6,000 lb Front Axle, 4.10 Rear Axle Ratio, Conventional Differential Front AxleMega Cab Fitment notes — MOPAR 68731389AB Fits: 6,000 lb Front Axle, 4.10 Rear Axle Ratio, Conventional Differential Front AxleMega CabHD 4WD or: 6,000 lb Front Axle, 4.10 Rear Axle Ratio, Conventional Differential Front AxleRegular Cab8 Foot BedHD 4WD or: 205MM HD Front Axle, 4.10 Rear Axle Ratio, Conventional Differential Front AxleCrew Cab8' BoxHD 4WD or: 6,000 lb Front Axle, 4.10 Rear Axle Ratio, Conventional Differential Front AxleCrew Cab8' BoxHD 4WD or: 205MM HD Front Axle, 4.10 Rear Axle Ratio, Conventional Differential Front AxleMega CabHD 4WD or: 205MM HD Front Axle, 4.10 Rear Axle Ratio, Conventional Differential Front AxleRegular Cab8 Foot BedHD 4WD or: Cab Chassis205mm HD Front Axle, 4.10 Rear Axle Ratio, Conventional Differential Front AxleRegular Cab Chassis Wheelbase 1HD 4WD or: Cab Chassis205mm HD Front Axle, 4.10 Rear Axle Ratio, Conventional Differential Front AxleRegular Cab Chassis Wheelbase 2HD 4WD or: Cab Chassis6,000 LB Front Axle, 4.10 Rear Axle Ratio, Conventional Differen	View on Amazon
MOPAR Fits: 6.7L L6 DIESEL Turbocharged	68710238AA	🇺🇸 US 🇨🇦 CA	Fits Cab ChassisCummins Engine Fitment notes — MOPAR 68710238AA Fits: Cab ChassisCummins Engine3.42 Rear Axle RatioDual Rear WheelsRegular Cab Chassis Wheelbase 1HD 4WD or: Cab ChassisCummins Engine3.42 Rear Axle RatioDual Rear WheelsRegular Cab Chassis Wheelbase 2HD 4WD or: Cab ChassisCummins Engine3.42 Rear Axle RatioDual Rear WheelsCrew Cab Wheelbase 4HD 4WD	View on Amazon

This table covers the ring-and-pinion gear sets that set the axle ratio.

Drive Shaft

Brand	Part Number	Markets	Notes	Buy
MOPAR Fits: all 2026 3500 engines	68305624AE	🇺🇸 US 🇨🇦 CA	Fits Cab ChassisDrive Shaft, Front Fitment notes — MOPAR 68305624AE Fits: Cab ChassisDrive Shaft, FrontRegular Cab Chassis Wheelbase 28-SPD Auto 8HP75-LCV TransmissionHD 4WD or: Cab ChassisDrive Shaft, FrontCrew Cab Wheelbase 48-SPD Auto 8HP75-LCV TransmissionHD 4WD or: Cab ChassisDrive Shaft, FrontRegular Cab Chassis Wheelbase 18-SPD Auto 8HP75-LCV TransmissionHD 4WD or: HEMI HD EngineDrive Shaft, FrontCrew Cab Crew Cab8' Box8-SPD Auto 8HP75-LCV TransmissionHD 4WD or: HEMI HD EngineDrive Shaft, FrontCrew Cab Wheelbase 28-SPD Auto 8HP75-LCV TransmissionHD 4WD or: HEMI HD EngineDrive Shaft, FrontRegular Cab, 8 Foot Bed8-SPD Auto 8HP75-LCV TransmissionHD 4WD	View on Amazon
MOPAR Fits: all 2026 3500 engines	68312638AE	🇺🇸 US 🇨🇦 CA	Fits Cab ChassisDrive Shaft, Front Fitment notes — MOPAR 68312638AE Fits: Cab ChassisDrive Shaft, FrontCrew Cab Wheelbase 48-Speed ZF Powerline Automatic TransmissionHD 4WD or: Cab ChassisDrive Shaft, FrontRegular Cab Chassis Wheelbase 18-Speed ZF Powerline Automatic TransmissionHD 4WD or: Cab ChassisDrive Shaft, FrontRegular Cab Chassis Wheelbase 28-Speed ZF Powerline Automatic TransmissionHD 4WD	View on Amazon
MOPAR Fits: all 2026 3500 engines	68312648AE	🇺🇸 US 🇨🇦 CA	Fits Cab ChassisDrive Shaft, Front Fitment notes — MOPAR 68312648AE Fits: Cab ChassisDrive Shaft, FrontCrew Cab Wheelbase 48-Speed ZF Powerline Automatic TransmissionHD 4WD or: Cab ChassisDrive Shaft, FrontRegular Cab Chassis Wheelbase 18-Speed ZF Powerline Automatic TransmissionHD 4WD or: Cab ChassisDrive Shaft, FrontRegular Cab Chassis Wheelbase 28-Speed ZF Powerline Automatic TransmissionHD 4WD or: Cummins engine HO EngineDrive Shaft, FrontExc. Dual Rear WheelsCrew Cab Wheelbase 28-Speed ZF Powerline Automatic TransmissionHD 4WD or: Cummins engine HO EngineDrive Shaft, FrontExc. Dual Rear WheelsCrew Cab8' Box8-Speed ZF Powerline Automatic TransmissionHD 4WD or: Cummins engine HO EngineDrive Shaft, FrontExc. Dual Rear WheelsMega Cab8-Speed ZF Powerline Automatic TransmissionHD 4WD or: Cummins engine HO EngineDrive Shaft, FrontExc. Dual Rear WheelsRegular Cab, 8 Foot Bed8-Speed ZF Powerline Automatic TransmissionHD 4WD	View on Amazon
MOPAR Fits: 6.4L V8	68649046AA	🇺🇸 US 🇨🇦 CA	2-Piece Fitment notes — MOPAR 68649046AA 2-Piece RearHEMI HD EngineDrive Shaft, RearRegular Cab, 8 Foot Bed8-SPD Auto 8HP75-LCV Transmission	View on Amazon
MOPAR Fits: 6.4L V8	68649047AA	🇺🇸 US 🇨🇦 CA	2-Piece Fitment notes — MOPAR 68649047AA 2-Piece RearHEMI HD EngineDrive Shaft, RearExc. Dual Rear WheelsCrew Cab Wheelbase 28-SPD Auto 8HP75-LCV Transmission	View on Amazon
MOPAR Fits: 6.7L L6 DIESEL Turbocharged	68368120AE	🇺🇸 US 🇨🇦 CA	Fits Cummins engine HO EngineDrive Shaft, Front Fitment notes — MOPAR 68368120AE Fits: Cummins engine HO EngineDrive Shaft, FrontDual Rear WheelsCrew Cab Wheelbase 28-Speed ZF Powerline Automatic TransmissionHD 4WD or: Cummins engine HO EngineDrive Shaft, FrontDual Rear WheelsCrew Cab8' Box8-Speed ZF Powerline Automatic TransmissionHD 4WD or: Cummins engine HO EngineDrive Shaft, FrontDual Rear WheelsMega Cab8-Speed ZF Powerline Automatic TransmissionHD 4WD or: Cummins engine HO EngineDrive Shaft, FrontDual Rear WheelsRegular Cab, 8 Foot Bed8-Speed ZF Powerline Automatic TransmissionHD 4WD	View on Amazon
MOPAR Fits: 6.7L L6 DIESEL Turbocharged	68649057AC	🇺🇸 US 🇨🇦 CA	2-Piece Fitment notes — MOPAR 68649057AC 2-Piece RearCummins engine HO EngineDrive Shaft, RearCrew Cab8' Box8-Speed ZF Powerline Automatic Transmission	View on Amazon

This table covers the driveshafts that carry torque from the transmission or transfer case.

Drive Shaft Center Support Bearing

Brand	Part Number	Markets	Notes	Buy
MOPAR Fits: all 2026 3500 engines	68450997AA	🇺🇸 US 🇨🇦 CA	Fits HEMI HD EngineRegular Cab Fitment notes — MOPAR 68450997AA Fits: HEMI HD EngineRegular Cab8 Foot Bed8-SPD Auto 8HP75-LCV Transmission or: Cab ChassisHEMI HD EngineCrew Cab Wheelbase 48-SPD Auto 8HP75-LCV TransmissionHD 4WD or: Cab ChassisHEMI HD EngineCrew Cab Wheelbase 48-SPD ZF Powerline Auto TransHD 4WD or: Cab ChassisHEMI HD EngineDual Rear WheelsRegular Cab Chassis Wheelbase 28-SPD Auto 8HP75-LCV Transmission or: Cab ChassisHEMI HD EngineDual Rear WheelsRegular Cab Chassis Wheelbase 28-SPD ZF Powerline Auto TransHD 4WD or: Cab ChassisHEMI HD EngineRegular Cab Chassis Wheelbase 18-SPD Auto 8HP75-LCV Transmission or: Cab ChassisHEMI HD EngineRegular Cab Chassis Wheelbase 18-SPD ZF Powerline Auto Trans Fits: Cummins engine HO EngineCrew Cab8' Box8-Speed ZF Powerline Automatic Transmission or: Cab ChassisCummins EngineDual Rear WheelsCrew Cab Wheelbase 48-Speed ZF Powerline Automatic TransmissionHD 4WD or: Cab ChassisCummins EngineDual Rear WheelsRegular Cab Chassis Wheelbase 18-Speed ZF Powerline Automatic Transmission or: Cab ChassisCummins EngineDual Rear WheelsRegular Cab Chassis Wheelbase 28-Speed ZF Powerline Automatic TransmissionHD 4WD or: Cab ChassisCummins EngineExc. Dual Rear WheelsCrew Cab Wheelbase 48-Speed ZF Powerline Automatic TransmissionHD 4WD or: Cab ChassisCummins EngineExc. Dual Rear WheelsRegular Cab Chassis Wheelbase 18-Speed ZF Powerline Automatic Transmission or: Cummins engine HO EngineExc. Dual Rear WheelsCrew Cab Wheelbase 28-Speed ZF Powerline Automatic Transmission	View on Amazon
MOPAR Fits: 6.7L L6 DIESEL Turbocharged	68451004AA	🇺🇸 US 🇨🇦 CA	Fits Cummins engine HO EngineDual Rear Wheels Fitment notes — MOPAR 68451004AA Fits: Cummins engine HO EngineDual Rear WheelsCrew Cab8' Box8-Speed ZF Powerline Automatic TransmissionHD 4WD or: Cummins engine HO EngineExc. Dual Rear WheelsCrew Cab8' Box8-Speed ZF Powerline Automatic TransmissionHD 4WD	View on Amazon

This table covers the Drive Shaft Center Support bearings. Typical signs include a growl that rises with speed, or play in the shaft or hub. Set preload the way the notes specify. A dry or crushed bearing fails quickly.

Gear Oil

SAE 75W-140

Brand	Part Number	Markets	Notes	Buy
MOBIL Fits: 6.7L L6 DIESEL Turbocharged	102490	🇺🇸 US 🇨🇦 CA	Synthetic Gear Lube Limited Slip 75W-14 0Mobil 1 Synthetic Gear Lubricant LS 75W-14 0 Fitment notes — MOBIL 102490 Synthetic Gear Lube Limited Slip 75W-14 0Mobil 1 Synthetic Gear Lubricant LS 75W-14 01 Quart Rear DifferentialLimited Slip Rear Differential305 AAM MTwith Dual Rear Wheels	View on Amazon

SAE 75W-90

Brand	Part Number	Markets	Notes	Buy
IDEMITSU Fits: 6.7L L6 DIESEL Turbocharged	30305024750	🇺🇸 US	75W90 Racing Gear Oil1 Quart Fitment notes — IDEMITSU 30305024750 75W90 Racing Gear Oil1 Quart Fits: Front Differential or: Rear DifferentialEngine Code ETNComponent code 292 AA	View on Amazon

Brand	Part Number	Markets	Notes	Buy
MOBIL Fits: 6.4L V8	102490	🇺🇸 US 🇨🇦 CA	Synthetic Gear Lube Limited Slip 75W-14 0Mobil 1 Synthetic Gear Lubricant LS 75W-14 0 Fitment notes — MOBIL 102490 Synthetic Gear Lube Limited Slip 75W-14 0Mobil 1 Synthetic Gear Lubricant LS 75W-14 01 Quart Rear DifferentialLimited Slip Rear Differential305 AAM MTwith Dual Rear Wheels	View on Amazon

This table covers the gear oils specified for the axle or transfer case. Typical signs include a low-oil lamp, knocking, or oil that has gone thin before the next interval. Match the viscosity and spec in the notes, not just the weight on the bottle.

Transfer Case Assembly

Brand	Part Number	Markets	Notes	Buy
MOPAR Fits: all 2026 3500 engines	68546808AB	🇺🇸 US 🇨🇦 CA	Fits BW 44-46Electric Shift-On-The-Fly Transfer Case, Dual Rear Wheels Fitment notes — MOPAR 68546808AB Fits: BW 44-46Electric Shift-On-The-Fly Transfer Case, Dual Rear WheelsCrew Cab8' Box8-Speed ZF Powerline Automatic TransmissionHD 4WD or: BW 44-46Electric Shift-On-The-Fly Transfer Case, Dual Rear WheelsMega Cab8-Speed ZF Powerline Automatic TransmissionHD 4WD or: BW 44-46Electric Shift-On-The-Fly Transfer Case, Dual Rear WheelsCrew Cab Wheelbase 28-Speed ZF Powerline Automatic TransmissionHD 4WD or: BW 44-46Electric Shift-On-The-Fly Transfer Case, Dual Rear WheelsRegular Cab, 8 Foot Bed8-Speed ZF Powerline Automatic TransmissionHD 4WD	View on Amazon
MOPAR Fits: all 2026 3500 engines	68546814AA	🇺🇸 US 🇨🇦 CA	Fits BW 44-46Elec Shift-On-The-Fly Transfer Case Fitment notes — MOPAR 68546814AA Fits: BW 44-46Elec Shift-On-The-Fly Transfer CaseCrew Cab Crew Cab8' Box8-SPD Auto 8HP75-LCV TransmissionHD 4WD or: BW 44-46Elec Shift-On-The-Fly Transfer CaseMega Cab8-SPD Auto 8HP75-LCV TransmissionHD 4WD or: Cab ChassisBW 44-46Elec Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 18-SPD Auto 8HP75-LCV TransmissionHD 4WD or: BW 44-46Elec Shift-On-The-Fly Transfer CaseCrew Cab Wheelbase 28-SPD Auto 8HP75-LCV TransmissionHD 4WD or: BW 44-46Elec Shift-On-The-Fly Transfer CaseRegular Cab, 8 Foot Bed8-SPD Auto 8HP75-LCV TransmissionHD 4WD	View on Amazon
MOPAR Fits: all 2026 3500 engines	68546815AA	🇺🇸 US 🇨🇦 CA	Fits BW 44-46Elec Shift-On-The-Fly Transfer Case Fitment notes — MOPAR 68546815AA Fits: BW 44-46Elec Shift-On-The-Fly Transfer CaseExc. Dual Rear WheelsCrew Cab Crew Cab8' Box8-Speed ZF Powerline Automatic TransmissionHD 4WD or: BW 44-46Elec Shift-On-The-Fly Transfer CaseExc. Dual Rear WheelsMega Cab8-Speed ZF Powerline Automatic TransmissionHD 4WD or: Cab ChassisBW 44-46Elec Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 18-Speed ZF Powerline Automatic TransmissionHD 4WD or: BW 44-46Elec Shift-On-The-Fly Transfer CaseExc. Dual Rear WheelsCrew Cab Wheelbase 28-Speed ZF Powerline Automatic TransmissionHD 4WD or: BW 44-46Elec Shift-On-The-Fly Transfer CaseExc. Dual Rear WheelsRegular Cab, 8 Foot Bed8-Speed ZF Powerline Automatic TransmissionHD 4WD or: Cab ChassisBW 44-46Elec Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 18-SPD ZF Powerline Auto TransHD 4WD	View on Amazon
MOPAR Fits: all 2026 3500 engines	68546816AA	🇺🇸 US 🇨🇦 CA	Fits Cab ChassisBW 44-46 Fitment notes — MOPAR 68546816AA Fits: Cab ChassisBW 44-46Elec Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 28-SPD Auto 8HP75-LCV TransmissionHD 4WD or: Cab ChassisBW 44-46Elec Shift-On-The-Fly Transfer CaseCrew Cab WHEELBASE 48-SPD Auto 8HP75-LCV TransmissionHD 4WD	View on Amazon
MOPAR Fits: all 2026 3500 engines	68546818AA	🇺🇸 US 🇨🇦 CA	Fits Cab ChassisBW 44-46 Fitment notes — MOPAR 68546818AA Fits: Cab ChassisBW 44-46Elec Shift-On-The-Fly Transfer CaseCrew Cab WHEELBASE 48-Speed ZF Powerline Automatic TransmissionHD 4WD or: Cab ChassisBW 44-46Elec Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 28-Speed ZF Powerline Automatic TransmissionHD 4WD or: Cab ChassisBW 44-46Elec Shift-On-The-Fly Transfer CaseCrew Cab Wheelbase 48-SPD ZF Powerline Auto TransHD 4WD or: Cab ChassisBW 44-46Elec Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 28-SPD ZF Powerline Auto TransHD 4WD	View on Amazon

This table covers the Transfer Case assemblies.

Transfer Case Control Module

Brand	Part Number	Markets	Notes	Buy
MOPAR Fits: all 2026 3500 engines	68674980AF	🇺🇸 US 🇨🇦 CA	Fits Cab ChassisElec Shift-On-The-Fly Transfer Case, Anti-Spin Differential Rear Axle Fitment notes — MOPAR 68674980AF Fits: Cab ChassisElec Shift-On-The-Fly Transfer Case, Anti-Spin Differential Rear AxleRegular Cab Chassis Wheelbase 1HD 4WD or: Cab ChassisElec Shift-On-The-Fly Transfer Case, Anti-Spin Differential Rear AxleRegular Cab Chassis Wheelbase 2HD 4WD or: Elec Shift-On-The-Fly Transfer Case, Anti-Spin Differential Rear AxleCrew Cab8' BoxHD 4WD or: Elec Shift-On-The-Fly Transfer Case, Anti-Spin Differential Rear AxleMega CabHD 4WD or: Elec Shift-On-The-Fly Transfer Case, Anti-Spin Differential Rear AxleRegular Cab8 Foot BedHD 4WD or: Cab ChassisElec Shift-On-The-Fly Transfer Case, Anti-Spin Differential Rear AxleCrew Cab Wheelbase 4HD 4WD or: Elec Shift-On-The-Fly Transfer Case, Anti-Spin Differential Rear AxleCrew Cab Wheelbase 2HD 4WD	View on Amazon

This table covers the Transfer Case control modules.

Transfer Case Fluid

Brand	Part Number	Markets	Notes	Buy
MOPAR Fits: all 2026 3500 engines	68089195AB	🇺🇸 US 🇨🇦 CA	Quart Fitment notes — MOPAR 68089195AB Quart Fits: Cab ChassisElec Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 28-SPD Auto 8HP75-LCV TransmissionHD 4WD or: Cab ChassisElectric Shift-On-The-Fly Transfer CaseCrew Cab Wheelbase 48-Speed Automatic 8HP75-LCV TransmissionHD 4WD or: Cab ChassisElectric Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 18-Speed Automatic 8HP75-LCV TransmissionHD 4WD or: Cab ChassisElectric Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 18-Speed ZF Powerline Automatic TransmissionHD 4WD or: Cab ChassisElec Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 18-SPD ZF Powerline Auto TransHD 4WD	View on Amazon
MOPAR Fits: all 2026 3500 engines	68089195AA	🇺🇸 US 🇨🇦 CA	Quart Fitment notes — MOPAR 68089195AA Quart Fits: Cab ChassisElec Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 28-SPD Auto 8HP75-LCV TransmissionHD 4WD or: Cab ChassisElectric Shift-On-The-Fly Transfer CaseCrew Cab Wheelbase 48-Speed Automatic 8HP75-LCV TransmissionHD 4WD or: Cab ChassisElectric Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 18-Speed Automatic 8HP75-LCV TransmissionHD 4WD or: Cab ChassisElectric Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 18-Speed ZF Powerline Automatic TransmissionHD 4WD or: Cab ChassisElec Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 18-SPD ZF Powerline Auto TransHD 4WD	View on Amazon

This table covers the fluids specified for the transfer case. Typical signs include discolored fluid, a burnt smell, or a level that keeps dropping. Use only the specification in the notes — the tables group grades because they are not interchangeable.

Transfer Case High / Low Clutch

Brand	Part Number	Markets	Notes	Buy
MOPAR Fits: all 2026 3500 engines	68450063AA	🇺🇸 US 🇨🇦 CA	Fits Elec Shift-On-The-Fly Transfer Case, Dual Rear WheelsCrew Cab Wheelbase 2 Fitment notes — MOPAR 68450063AA Fits: Elec Shift-On-The-Fly Transfer Case, Dual Rear WheelsCrew Cab Wheelbase 28-SPD ZF Powerline Automatic TransHD 4WD or: Elec Shift-On-The-Fly Transfer Case, Dual Rear WheelsCrew Cab8' Box8-SPD ZF Powerline Automatic TransHD 4WD or: Elec Shift-On-The-Fly Transfer Case, Dual Rear WheelsMega Cab8-SPD ZF Powerline Automatic TransHD 4WD or: Elec Shift-On-The-Fly Transfer Case, Dual Rear WheelsRegular Cab, 8 Foot Bed8-SPD ZF Powerline Automatic TransHD 4WD	View on Amazon

This table covers the Transfer Case High / Low clutches. Typical signs include slip at highway speed, chatter on takeoff, or a pedal that stays low. Resurface or replace the flywheel with the clutch — a heat-checked flywheel wastes the new disc.

Transfer Case Motor

Brand	Part Number	Markets	Notes	Buy
MOPAR Fits: all 2026 3500 engines	68450191AA	🇺🇸 US 🇨🇦 CA	Fits Electric Shift-On-The-Fly Transfer Case, Dual Rear WheelsCrew Cab Wheelbase 2 Fitment notes — MOPAR 68450191AA Fits: Electric Shift-On-The-Fly Transfer Case, Dual Rear WheelsCrew Cab Wheelbase 28-Speed ZF Powerline Automatic TransmissionHD 4WD or: Electric Shift-On-The-Fly Transfer Case, Dual Rear WheelsCrew Cab8' Box8-Speed ZF Powerline Automatic TransmissionHD 4WD or: Electric Shift-On-The-Fly Transfer Case, Dual Rear WheelsMega Cab8-Speed ZF Powerline Automatic TransmissionHD 4WD or: Electric Shift-On-The-Fly Transfer Case, Dual Rear WheelsRegular Cab8 Foot Bed8-Speed ZF Powerline Automatic TransmissionHD 4WD	View on Amazon

This table covers the Transfer Case motors. Typical signs include no motion, a squeal, or a motor that only runs on one speed. Confirm power, ground and the control module before replacing the motor.

Transfer Case Sprocket

Brand	Part Number	Markets	Notes	Buy
MOPAR Fits: all 2026 3500 engines	68161362AA	🇺🇸 US 🇨🇦 CA	Fits Cab ChassisElectronic Shift-On-The-Fly Transfer Case Fitment notes — MOPAR 68161362AA Fits: Cab ChassisElectronic Shift-On-The-Fly Transfer CaseCrew Cab Wheelbase 48-Speed Automatic 8HP75-LCV TransmissionHD 4WD or: Cab ChassisElectronic Shift-On-The-Fly Transfer CaseCrew Cab Wheelbase 48-Speed ZF Powerline Automatic TransmissionHD 4WD or: Cab ChassisElectronic Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 18-Speed Automatic 8HP75-LCV TransmissionHD 4WD or: Cab ChassisElectronic Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 18-Speed ZF Powerline Automatic TransmissionHD 4WD or: Cab ChassisElectronic Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 28-Speed Automatic 8HP75-LCV TransmissionHD 4WD or: Cab ChassisElectronic Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 28-Speed ZF Powerline Automatic TransmissionHD 4WD or: Electronic Shift-On-The-Fly Transfer CaseCrew Cab Wheelbase 28-Speed Automatic 8HP75-LCV TransmissionHD 4WD or: Electronic Shift-On-The-Fly Transfer CaseCrew Cab	View on Amazon
MOPAR Fits: all 2026 3500 engines	68161363AA	🇺🇸 US 🇨🇦 CA	Fits Cab ChassisElectronic Shift-On-The-Fly Transfer Case Fitment notes — MOPAR 68161363AA Fits: Cab ChassisElectronic Shift-On-The-Fly Transfer CaseCrew Cab Wheelbase 48-Speed Automatic 8HP75-LCV TransmissionHD 4WD or: Cab ChassisElectronic Shift-On-The-Fly Transfer CaseCrew Cab Wheelbase 48-Speed ZF Powerline Automatic TransmissionHD 4WD or: Cab ChassisElectronic Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 18-Speed Automatic 8HP75-LCV TransmissionHD 4WD or: Cab ChassisElectronic Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 18-Speed ZF Powerline Automatic TransmissionHD 4WD or: Cab ChassisElectronic Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 28-Speed Automatic 8HP75-LCV TransmissionHD 4WD or: Cab ChassisElectronic Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 28-Speed ZF Powerline Automatic TransmissionHD 4WD or: Electronic Shift-On-The-Fly Transfer CaseCrew Cab Wheelbase 28-Speed Automatic 8HP75-LCV TransmissionHD 4WD or: Electronic Shift-On-The-Fly Transfer CaseCrew Cab	View on Amazon
MOPAR Fits: all 2026 3500 engines	68449235AA	🇺🇸 US 🇨🇦 CA	Fits Elec Shift-On-The-Fly Transfer Case, Dual Rear WheelsCrew Cab Wheelbase 2 Fitment notes — MOPAR 68449235AA Fits: Elec Shift-On-The-Fly Transfer Case, Dual Rear WheelsCrew Cab Wheelbase 28-Speed ZF Powerline Automatic TransmissionHD 4WD or: Elec Shift-On-The-Fly Transfer Case, Dual Rear WheelsCrew Cab8' Box8-Speed ZF Powerline Automatic TransmissionHD 4WD or: Elec Shift-On-The-Fly Transfer Case, Dual Rear WheelsMega Cab8-Speed ZF Powerline Automatic TransmissionHD 4WD or: Elec Shift-On-The-Fly Transfer Case, Dual Rear WheelsRegular Cab8 Foot Bed8-Speed ZF Powerline Automatic TransmissionHD 4WD	View on Amazon
MOPAR Fits: all 2026 3500 engines	68449236AA	🇺🇸 US 🇨🇦 CA	Fits Elec Shift-On-The-Fly Transfer Case, Dual Rear WheelsCrew Cab Wheelbase 2 Fitment notes — MOPAR 68449236AA Fits: Elec Shift-On-The-Fly Transfer Case, Dual Rear WheelsCrew Cab Wheelbase 28-Speed ZF Powerline Automatic TransmissionHD 4WD or: Elec Shift-On-The-Fly Transfer Case, Dual Rear WheelsCrew Cab8' Box8-Speed ZF Powerline Automatic TransmissionHD 4WD or: Elec Shift-On-The-Fly Transfer Case, Dual Rear WheelsMega Cab8-Speed ZF Powerline Automatic TransmissionHD 4WD or: Elec Shift-On-The-Fly Transfer Case, Dual Rear WheelsRegular Cab8 Foot Bed8-Speed ZF Powerline Automatic TransmissionHD 4WD	View on Amazon

This table covers the Transfer Case sprockets.

Transfer Case Vent

Brand	Part Number	Markets	Notes	Buy
MOPAR Fits: all 2026 3500 engines	68206423AA	🇺🇸 US 🇨🇦 CA	Fits Cab ChassisElectric Shift-On-The-Fly Transfer Case Fitment notes — MOPAR 68206423AA Fits: Cab ChassisElectric Shift-On-The-Fly Transfer CaseCrew Cab Wheelbase 48-SPD Auto 8HP75-LCV TransmissionHD 4WD or: Cab ChassisElectric Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 18-SPD Auto 8HP75-LCV TransmissionHD 4WD or: Cab ChassisElectric Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 28-SPD Auto 8HP75-LCV TransmissionHD 4WD or: Electric Shift-On-The-Fly Transfer CaseCrew Cab Crew Cab8' Box8-SPD Auto 8HP75-LCV TransmissionHD 4WD or: Electric Shift-On-The-Fly Transfer CaseCrew Cab Wheelbase 28-SPD Auto 8HP75-LCV TransmissionHD 4WD or: Electric Shift-On-The-Fly Transfer CaseMega Cab8-SPD Auto 8HP75-LCV TransmissionHD 4WD or: Electric Shift-On-The-Fly Transfer CaseRegular Cab8 Foot Bed8-SPD Auto 8HP75-LCV TransmissionHD 4WD	View on Amazon
MOPAR Fits: all 2026 3500 engines	68207382AB	🇺🇸 US 🇨🇦 CA	Fits Electric Shift-On-The-Fly Transfer Case, Dual Rear WheelsCrew Cab Wheelbase 2 Fitment notes — MOPAR 68207382AB Fits: Electric Shift-On-The-Fly Transfer Case, Dual Rear WheelsCrew Cab Wheelbase 28-Speed ZF Powerline Automatic TransmissionHD 4WD or: Electric Shift-On-The-Fly Transfer Case, Dual Rear WheelsCrew Cab8' Box8-Speed ZF Powerline Automatic TransmissionHD 4WD or: Electric Shift-On-The-Fly Transfer Case, Dual Rear WheelsMega Cab8-Speed ZF Powerline Automatic TransmissionHD 4WD or: Electric Shift-On-The-Fly Transfer Case, Dual Rear WheelsRegular Cab8 Foot Bed8-Speed ZF Powerline Automatic TransmissionHD 4WD or: Cab ChassisElectric Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 18-Speed ZF Powerline Automatic TransmissionHD 4WD or: Cab ChassisElectric Shift-On-The-Fly Transfer CaseCrew Cab Wheelbase 48-Speed ZF Powerline Automatic TransmissionHD 4WD or: Cab ChassisElectric Shift-On-The-Fly Transfer CaseRegular Cab Chassis Wheelbase 28-Speed ZF Powerline Automatic TransmissionHD 4WD or: Electric Shift-On-The-Fly Transfer CaseExc. Dual Rear	View on Amazon

This table covers the vents on the transfer case.

Universal Joint

Brand	Part Number	Markets	Notes	Buy
MOOG Fits: all 2026 3500 engines	485	🇺🇸 US 🇨🇦 CA	Super StrengthGreasable Fitment notes — MOOG 485 Super StrengthGreasable Fits: Rear Driveshaft at Rear Axle4WDwith 1 Piece Rear Driveshaft or: Rear Driveshaft at Transmission4WDwith 1 Piece Rear Driveshaft or: Rear Driveshaft At Rear AxleRWDwith 1 Piece Rear Driveshaft or: Rear Driveshaft At TransmissionRWDwith 1 Piece Rear Driveshaft or: Rear Driveshaft At Rear AxleRWDwith 2 Piece Rear Driveshaft or: Rear Driveshaft At Support BearingRWDwith 2 Piece Rear Driveshaft or: Rear Driveshaft At TransmissionRWDwith 2 Piece Rear Driveshaft or: Rear Driveshaft At Rear Axle4WDwith 2 Piece Rear Driveshaft or: Rear Driveshaft At Support Bearing4WDwith 2 Piece Rear Driveshaft or: Rear Driveshaft At Transmission4WDwith 2 Piece Rear Driveshaft	View on Amazon
MOPAR Fits: all 2026 3500 engines	68451034AB	🇺🇸 US 🇨🇦 CA	Kit Fitment notes — MOPAR 68451034AB Kit HEMI HD EngineExc. Dual Rear WheelsCrew Cab Wheelbase 28-SPD Auto 8HP75-LCV TransmissionHD 4WD Cummins engine HO EngineExc. Dual Rear WheelsMega Cab8-Speed ZF Powerline Automatic TransmissionHD 4WD	View on Amazon
MOPAR Fits: 6.4L V8	68451103AB	🇺🇸 US 🇨🇦 CA	Kit Fitment notes — MOPAR 68451103AB Kit Fits: HEMI HD EngineRegular Cab8 Foot Bed8-SPD Auto 8HP75-LCV TransmissionHD 4WD or: Cab ChassisHEMI HD EngineCrew Cab Wheelbase 48-SPD Auto 8HP75-LCV TransmissionHD 4WD or: Cab ChassisHEMI HD EngineCrew Cab Wheelbase 48-SPD ZF Powerline Auto TransHD 4WD or: Cab ChassisHEMI HD EngineDual Rear WheelsRegular Cab Chassis Wheelbase 28-SPD Auto 8HP75-LCV TransmissionHD 4WD or: Cab ChassisHEMI HD EngineDual Rear WheelsRegular Cab Chassis Wheelbase 28-SPD ZF Powerline Auto TransHD 4WD or: Cab ChassisHEMI HD EngineRegular Cab Chassis Wheelbase 18-SPD Auto 8HP75-LCV TransmissionHD 4WD or: Cab ChassisHEMI HD EngineRegular Cab Chassis Wheelbase 18-SPD ZF Powerline Auto TransHD 4WD	View on Amazon
MOPAR Fits: 6.4L V8	68452776AC	🇺🇸 US 🇨🇦 CA	Kit Fitment notes — MOPAR 68452776AC Kit Fits: Cab ChassisRegular Cab Chassis Wheelbase 28-Speed Automatic 8HP75-LCV TransmissionHD 4WD or: Cab ChassisRegular Cab Chassis Wheelbase 18-Speed ZF Powerline Automatic TransmissionHD 4WD or: Cab ChassisRegular Cab Chassis Wheelbase 28-Speed ZF Powerline Automatic TransmissionHD 4WD or: Cab ChassisRegular Cab Chassis Wheelbase 18-Speed Automatic 8HP75-LCV TransmissionHD 4WD or: Cab ChassisCrew Cab Wheelbase 48-Speed Automatic 8HP75-LCV TransmissionHD 4WD or: Cab ChassisCrew Cab Wheelbase 48-Speed ZF Powerline Automatic TransmissionHD 4WD or: HEMI HD EngineRegular Cab8 Foot Bed8-SPD Auto 8HP75-LCV TransmissionHD 4WD or: Cab ChassisCrew Cab Wheelbase 48-SPD ZF Powerline Auto TransHD 4WD or: Cab ChassisRegular Cab Chassis Wheelbase 18-SPD ZF Powerline Auto TransHD 4WD or: Cab ChassisRegular Cab Chassis Wheelbase 28-SPD ZF Powerline Auto TransHD 4WD or: HEMI HD EngineCrew Cab Crew Cab8' Box8-SPD Auto 8HP75-LCV TransmissionHD 4WD or: H	View on Amazon

This table covers the U-joints in the driveshaft.

Buying Drivetrain Parts for a 2026 Ram 3500

On this vehicle, the drivetrain system moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware.

Match the engine first. Some drivetrain parts fit every engine; others are engine-specific. Each row shows which engine(s) it fits.
Read the notes on each row for position, trim and spec qualifiers before you order.
Where labor overlaps, replace the differential or transfer-case fluid with any axle or seal job while everything is already open.
Cross-reference the manufacturer part number against your old part or a service-manual listing.

Start with the largest groups on this page: Drive Shaft and Axle Shaft .

Frequently Asked Questions

How many drivetrain parts fit the 2026 Ram 3500?

Our catalog currently lists 62 drivetrain parts for the 2026 Ram 3500 across 20 subcategories and 7 brands, covering both the 6.4L V8 and the 6.7L L6 DIESEL Turbocharged. Each part is matched to the engine(s) it fits.

Do drivetrain parts differ between 2026 Ram 3500 engines?

Some do. 47 parts fit every engine; the other 15 are engine-specific. Each row (and the filter at the top) shows which. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.

What are the signs of drivetrain problems on a 2026 Ram 3500?

Common symptoms include clicking in tight turns, a clunk when shifting between drive and reverse, vibration that builds with speed, or gear oil on the inside of a wheel. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.

What should I replace at the same time?

Where labor overlaps, replace the differential or transfer-case fluid with any axle or seal job while everything is already open.

What do the market flags (US, CA, MX) on each part mean?

They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2026 Ram 3500 was originally sold in the US, the safest choice is a part marked for the US market.

How do I make sure a part fits my 2026 Ram 3500?

First match the engine — each row shows which engine(s) the part fits. Then a torn CV boot caught early is a cheap boot kit; caught late it is a whole axle — inspect before deciding which to buy. The notes column carries position and trim qualifiers where they apply.

Other Parts for the 2026 Ram 3500

Belt Drive Body & Lamp Assembly Brake & Wheel Hub Cooling System Electrical Electrical Connector Electrical Switch & Relay Engine Exhaust & Emission Fuel & Air Heat & Air Conditioning Ignition Interior Steering Suspension Automatic Transmission Wheel Wiper & Washer

Drivetrain Parts for Other Ram 3500 Years

2025 Ram 3500 2024 Ram 3500 2023 Ram 3500 2022 Ram 3500 2021 Ram 3500 2020 Ram 3500 2019 Ram 3500 2018 Ram 3500 2017 Ram 3500 2016 Ram 3500 2015 Ram 3500 2014 Ram 3500

Switch vehicle or jump to a subcategory

Make Year Model Engine Part category Subcategory

Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.

Published by AutoFactsDB from manufacturer application data. How fitment is matched Report a fitment error