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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1884 (Transfer Case - NVG 900) >> Repair Instructions >> Pinion Oil Seal Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Removing/Installing Collapsible Spacer, Pinion Shaft & Bearing Onto The Pinion Shaft
    GM934679Courtesy of GENERAL MOTORS CORP.
  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. Fig 2: Slinger Washer & Pinion Seal
    GM934672Courtesy of GENERAL MOTORS CORP.
  5. Install the slinger washer (2) and the NEW pinion seal (1) to the housing.
  6. Fig 3: Installing Pinion Seal Using J44872
    GM934832Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Clean the seal bores. Inspect for nicks caused by seal removal.
  7. Using the J 44872  , install the NEW pinion seal. See Special Tools .
  8. Fig 4: View Of Pinion Flange And Pinion Nut
    GM934598Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Use a NEW pinion nut.
  9. Using a NEW pinion nut (1), install the pinion flange (2) to the pinion shaft.
  10. Fig 5: Installing J44873 & 2 Bolts In Order To Hold The Pinion Flange
    GM934687Courtesy of GENERAL MOTORS CORP.
  11. Install the J 44873  and the 2 bolts supplied in order to hold the pinion flange while tightening the nut.
  12. Tighten the pinion flange nut until it is snug.
  13. NOTE: Refer to Fastener Notice .
  14. Tighten the nut slowly in order to crush the collapsible spacer.

    Tighten:  Tighten the pinion flange nut to achieve a rotating torque of 0.9-1.6 N.m (8-14 lb in).

  15. Fig 6: Cleaning Carrier Assembly Housing Sealing Surface
    GM850510Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Do not use motor-powered tools to clean surfaces.
  16. Clean the carrier assembly housing sealing surface (1) with solvent and scrape it clean with a razor blade.
  17. Fig 7: Cleaning Cover Sealing Surface
    GM850512Courtesy of GENERAL MOTORS CORP.
  18. Clean the cover sealing surface (1) with solvent and scrape it clean with a razor blade.
  19. Fig 8: Removing/Installing Carrier Assembly From The Housing
    GM850523Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Use gear lubricant fluid Saturn P/N 12378514 to grease the seal lips in order to protect the seal and to ease in assembly.
  20. Install the carrier assembly (1) to the housing.
  21. Fig 9: Applying Sealer To Housing
    GM934846Courtesy of GENERAL MOTORS CORP.
  22. Apply 2-3 mm (0.08-0.12 in) of sealer Saturn P/N 1052943 or equivalent to the housing (1).
  23. Fig 10: Side Cover & Bolts
    GM934818Courtesy of GENERAL MOTORS CORP.
    IMPORTANT:
    • Grease the seal lips in order to protect the seal and to ease in assembly.
    • Apply sealant Saturn P/N 12345382 to the bolt threads.
  24. Install the side cover (1) and bolts (2, 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:  Tighten the side cover bolts to 37 N.m (27 lb ft).

  25. Apply sealant Saturn P/N 21485278 to the drain plug threads.
  26. Install the drain plug.

    Tighten:  Tighten the drain plug to 24 N.m (18 lb ft).

  27. After the transfer case is installed in the vehicle, fill the transfer case with fluid to the bottom of the fill plug hole, or 540 ml (18.2 oz).
  28. Apply sealant Saturn P/N 21005994 to the fill plug threads.
  29. Install the fill plug.

    Tighten:  Tighten the fill plug to 15 N.m (11 lb ft).