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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 131 (Transfer Case - NVG 246-NP8) >> Repair Instructions >> Transfer Case Adapter Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2007 GMC Yukon XL, 2007 GMC Yukon, 2007 Chevrolet Tahoe, 2007 Chevrolet Suburban, and 2007 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT: If the gasket or the seal becomes damaged, replace it. DO NOT use any type of silicone sealer or liquid gasket maker in place of the seal or gasket.
    Fig 1: View Of Transfer Case Adapter, Bolts & Seal
    GM652614Courtesy of GENERAL MOTORS CORP.
  1. Install a NEW transfer case adapter seal.
  2. Install the transfer case adapter.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
  3. Install the transfer case adapter bolts.

    Tighten:  Tighten the bolts to 50 N.m (37 lb ft).

    4. Fig 2: View Of Transmission Mount
    GM648001Courtesy of GENERAL MOTORS CORP.
  4. Install the transmission mount.
    5. Fig 3: Installing Transmission Mount Bolts
    GM715661Courtesy of GENERAL MOTORS CORP.
  5. Install the transmission mount bolts.

    Tighten:  Tighten the bolts to 47 N.m (35 lb ft).

    6. Fig 4: Identifying Crossmember & Bolts
    GM652595Courtesy of GENERAL MOTORS CORP.
  6. Install the crossmember.
  7. Install the crossmember bolts.

    Tighten:  Tighten the bolts to 70 N.m (52 lb ft).

    8. Fig 5: Identifying Transmission Mount Nuts
    GM647997Courtesy of GENERAL MOTORS CORP.
  8. Install the transmission mount nuts.

    Tighten:  Tighten the nuts to 40 N.m (30 lb ft).

  9. Remove the transmission jack.
    10. Fig 6: View Of Transfer Case Gasket
    GM654219Courtesy of GENERAL MOTORS CORP.
  10. Install a NEW transfer case gasket, if necessary.
  11. Install the transfer case. Refer to Transfer Case Assembly Replacement .
  12. Check the fluid level. Add fluid if necessary.
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