Transfer Case Assemble

Transfer Case Assemble

Special Tools
* J 4972-4 - Output Shaft Needle Bearing Installer
* J 8092 - Driver Handle
* J-08614-A - Pinion Flange Holder
* J 44809 - Output Shaft Seal Installer
* J 44871 - Hub Seal Installer
* J 44872 - Pinion Shaft Seal Installer
* J-44873-2 - Shoulder Bolts
* J 44875 - Right Bearing Race Installer

For equivalent regional tools, refer to Special Tools (NVG 900 - Transfer Case).




1. Install the NEW collapsible spacer (2) onto the pinion shaft (3).
2. Install the pinion shaft (3) into the housing.
3. Install the bearing (1) onto the pinion shaft.




4. Install the slinger washer (2) and the new pinion seal (1) to the housing.




5. Using J 44872 - installer , install the new pinion seal.





Note: Use a NEW pinion nut.

6. Using a NEW pinion nut (1), install the pinion flange (2) to the pinion shaft.




7. Install J-08614-A - installer (2) and J-44873-2 - bolts (1) in order to hold the pinion flange while tightening the nut.
8. Tighten the pinion flange nut until it is snug.

Caution: Refer to Fastener Caution (Fastener Caution).

9. Tighten the nut slowly in order to crush the collapsible spacer. Tighten the nut to achieve a rotating torque of 0.9-1.5 Nm (8-14 lb in).
10. Remove J-08614-A - holder (2) and J-44873-2 - bolts (1).




11. Using J 4972-4 - installer (2) and J 8092 - handle (1), install the axle shaft bearing (3) to the carrier until the bearing seats.





Caution: Do not install the seal from inside the housing. The outside diameter of the bearing cup may cause seal damage.

12. Using the J 44872 - installer (2) and the J 8092 - handle (1), install the oil seal (3) to the housing.





Caution: The bearing cup must be removed in order to install the seal. If the bearing cup is not removed first, seal damage may occur.

13. Using the J 44871 - installer (2) and the J 8092 - handle (3), install the inner oil seal (1) into the cover.




14. Install the shim (2) and bearing cup (3) into the side cover (1).





Caution: Do not use air tools. The use of air tools will damage the J 44882.

15. Using the J 44875 - installer (2) and the J 8092 - handle (1), install the cup and the shim.




16. Using the J 44809 - installer , install the axle shaft oil seal (2) to the side cover (1).





Note: Grease the seal lips to protect the seal and to ease in assembly.

17. Install the carrier assembly (1) to the housing.





Note: Do not apply excess sealer. Excess sealer could cause premature failure.

18. Apply a 2-3 mm (0.08-0.12 in) amount of sealer GM P/N 1052943 (Canadian P/N 10953491), or equivalent, to the housing (1).





Note:
* Grease the seal lips to protect the seal and to ease in assembly.
* Coat the bolt threads with sealant GM P/N 12345382 (Canadian P/N 10953489).

19. Install the side cover (1) and bolts (2 and 3) to the housing.
There is not a specific tightening sequence, but the bolts with dowel pins should be tightened first, and alternate the others from side to side. Tighten the side cover bolts to 37 Nm (27 lb ft).




20. Apply sealant GM P/N 12346004 (Canadian P/N 10953480), or equivalent, to the threads of the drain plug.
21. Install the drain plug (1) into the housing and tighten to 24 Nm (18 lb ft).




22. Fill the transfer case with 500 ml (17 oz) gear oil GM P/N 12378514 (Canadian P/N 88901045), or equivalent, or until the lube is to the bottom of the lube fill hole.
23. Apply adhesive GM P/N 12345493 (Canadian P/N 10953488), or equivalent, to the threads of the fill plug (1).
24. Install the fill plug (1) to the side cover and tighten to 15 Nm (11 lb ft).