2021 Chevrolet Trailblazer Drivetrain Parts

This table covers the Axle / Differential assemblies. Read more

GM GENUINE supplies both parts for the 2021 Chevrolet Trailblazer.

Part numbers include GM GENUINE 42729884 and GM GENUINE 42749058.

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. Read more

4 Axle Shaft Seal parts for the 2021 Chevrolet Trailblazer come from 3 brands — GM GENUINE, ACDELCO and SKF.

Part numbers include ACDELCO 291363, GM GENUINE 23276834 and GM GENUINE 291342, among others listed above.

This table covers the complete CV axle shafts from differential (or hub) to wheel. Typical signs include a click in tight turns, grease flung around the wheel well, or a vibration that builds with speed. A torn boot caught early is a boot kit; caught late it is the whole axle. Torque the axle nut to the method in the notes. Read more

15 CV Axle parts for the 2021 Chevrolet Trailblazer come from 4 brands — TOP NOTCH, GSP, TRAKMOTIVE and 1 other brand. The "Popular" part is GM GENUINE 60008698.

This table covers the boots that keep grease in a CV joint. Typical signs include a split boot, grease flung around the joint, or a click once grit is inside. A boot caught early is a kit. Once the joint has clicked, the joint itself is usually worn. Read more

5 CV Joint Boot parts for the 2021 Chevrolet Trailblazer come from GM GENUINE. The "Popular" part is GM GENUINE 42756982.

Listed part numbers: GM GENUINE 42756982, GM GENUINE 42721976 and GM GENUINE 42721984, plus the other parts above.

This table covers the bands that clamp a CV boot to the joint. Read more

GM GENUINE supplies the 5 CV Joint Boot Band parts for the 2021 Chevrolet Trailblazer.

This group includes GM GENUINE 42721958, GM GENUINE 42721973 and GM GENUINE 42722025 and the remaining parts above.

This table covers the CV Joint Lock rings. Read more

One part is listed for the 2021 Chevrolet Trailblazer — GM GENUINE 42721955.

This table covers the carriers that hold the differential gears in the axle. Read more

This group shows a single part: GM GENUINE 24277639.

This table covers the bearings and races that support the differential carrier. Read more

2 Differential Carrier Bearing / Race parts for the 2021 Chevrolet Trailblazer come from GM GENUINE.

This group includes GM GENUINE 24237378 and GM GENUINE 24298891.

This table covers the Differential Carrier bolts. Read more

One part is listed for the 2021 Chevrolet Trailblazer — GM GENUINE 11519542.

This table covers the Differential Carrier bushings. Typical signs include a clunk over bumps, or a torn or walked-out bushing you can see. Press the new bushing square. A cocked bushing will tear in a few thousand miles. Read more

This group shows a single part: GM GENUINE 84417056.

This table covers the baffles that control oil in the differential carrier. Read more

2 Differential Carrier Fluid Baffle parts for the 2021 Chevrolet Trailblazer come from GM GENUINE.

Part numbers include GM GENUINE 24298737 and GM GENUINE 24298738.

This table covers the Differential control modules. Read more

One part is listed for the 2021 Chevrolet Trailblazer — GM GENUINE 42772712.

This table covers the Differential Cover bolts. Read more

This group shows a single part: GM GENUINE 42694796.

This table covers the gaskets that seal the Differential Cover. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for. Read more

2 Differential Cover Gasket parts for the 2021 Chevrolet Trailblazer come from ELRING.

This group includes ELRING B18220 and ELRING B18250.

This table covers the dampers that quiet the differential. Read more

This group shows a single part: GM GENUINE 42694804.

This table covers the Differential Fill drain plugs. Read more

This group shows a single part: GM GENUINE 42694802.

This table covers the slingers that keep gear oil off the pinion seal. Read more

This group shows a single part: GM GENUINE 42694807.

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

GM GENUINE supplies both parts for the 2021 Chevrolet Trailblazer.

Part numbers include GM GENUINE 42782627 and GM GENUINE 42782628.

This table covers the baffles that control oil at the pinion bearings. Read more

One part is listed for the 2021 Chevrolet Trailblazer — GM GENUINE 42694805.

This table covers the Differential Pinion nuts. Read more

This group shows a single part: GM GENUINE 42694806.

This table covers the seals at the differential pinion yoke. 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. Read more

This group shows a single part: TIMKEN SL260436.

This table covers the Differential Pinion shims. Read more

This group shows a single part: GM GENUINE 24285626.

This table covers the Differential Ring gears. Read more

One part is listed for the 2021 Chevrolet Trailblazer — GM GENUINE 24298251.

This table covers the Differential Ring Gear bolts. Read more

This group shows a single part: AAM 40061033.

This table covers the seals at the Differential. 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. Read more

ELRING supplies both parts for the 2021 Chevrolet Trailblazer.

Listed part numbers: ELRING B18240 and ELRING B18260.

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

GM GENUINE supplies both parts for the 2021 Chevrolet Trailblazer.

Part numbers include GM GENUINE 60005880 and GM GENUINE 84666373.

This table covers the Drive Shaft bolts. Read more

This group shows a single part: GM GENUINE 11603392.

This table covers the Drive Shaft retainers. Read more

One part is listed for the 2021 Chevrolet Trailblazer — GM GENUINE 23432713.

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. Read more

6 Gear Oil parts for the 2021 Chevrolet Trailblazer come from VALVOLINE. The "Popular" part is VALVOLINE VV975.

Listed part numbers: VALVOLINE VV975, VALVOLINE 889785 and VALVOLINE 882505, plus the other parts above.

This table covers the Retaining rings. Read more

This group shows a single part: GM GENUINE 24231157.

This table covers the Torque tubes. Read more

One part is listed for the 2021 Chevrolet Trailblazer — GM GENUINE 42789512.

This table covers the Transfer Case adapters. Read more

One part is listed for the 2021 Chevrolet Trailblazer — GM GENUINE 84113051.

This table covers the Transfer Case bolts. Read more

2 Transfer Case Bolt parts are listed for the 2021 Chevrolet Trailblazer, from ELRING and GM GENUINE.

Listed part numbers: ELRING 795390 and GM GENUINE 11603169.

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. Read more

This group shows a single part: GM GENUINE 104105.

This table covers the seals at the Transfer Case Housing Extension. 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. Read more

One part is listed for the 2021 Chevrolet Trailblazer — GM GENUINE 84501580.

This table covers the seals at the Transfer Case Input Shaft. 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. Read more

One part is listed for the 2021 Chevrolet Trailblazer — GM GENUINE 84501576.

This table covers the seals at the Transfer Case Intermediate Shaft. 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. Read more

This group shows a single part: GM GENUINE 85732462.

This table covers the Transfer Case Oil drain plugs. Read more

This group shows a single part: GM GENUINE 55573646.

This table covers the vents on the transfer case. Read more

One part is listed for the 2021 Chevrolet Trailblazer — GM GENUINE 84501587.