2026 GMC Terrain Drivetrain Parts

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

One part is listed for the 2026 GMC Terrain — GM GENUINE 84910656.

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

GM GENUINE supplies both parts for the 2026 GMC Terrain.

Part numbers include GM GENUINE 42939078 and GM GENUINE 42955259.

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

GM GENUINE supplies the 4 CV Joint Boot parts for the 2026 GMC Terrain.

This group includes GM GENUINE 42939065, GM GENUINE 42939067 and GM GENUINE 42939069 and the remaining parts above.

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

3 CV Joint Boot Band parts for the 2026 GMC Terrain come from GM GENUINE.

Part numbers include GM GENUINE 364038, GM GENUINE 42722029 and GM GENUINE 84167070.

This table covers the CV Joint Lock rings. Read more

3 CV Joint Lock Ring parts for the 2026 GMC Terrain come from GM GENUINE.

Part numbers include GM GENUINE 90121202, GM GENUINE 42758418 and GM GENUINE 42955260.

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

One part is listed for the 2026 GMC Terrain — GM GENUINE 24287261.

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

GM GENUINE supplies both parts for the 2026 GMC Terrain.

This group includes GM GENUINE 24237378 and GM GENUINE 24298891.

This table covers the Differential Carrier bolts. Read more

This group shows a single part: GM GENUINE 11561302.

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

GM GENUINE supplies both parts for the 2026 GMC Terrain.

This group includes GM GENUINE 84905394 and GM GENUINE 84929903.

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

GM GENUINE supplies both parts for the 2026 GMC Terrain.

Part numbers include GM GENUINE 24298737 and GM GENUINE 24298738.