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Home >> Chevrolet >> 2007 >> Chevy Express G2500, Van Cargo, 6.6 6 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 22 (Transfer Case - BW 4473-NP3) >> Repair Instructions - On Vehicle >> Adapter Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different variant/trim than selected.
    Fig 1: Identifying Adapter To Transmission Mounting Bolts
    GM860431Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Always use a new gasket and seal for the adapter. Do not use any type of sealant or adhesive in place of or with the gasket or the seal.
  1. Install the new seal on the adapter.
    2. IMPORTANT: The transfer case adapter must be installed so that the adapter is evenly seated to the transmission before installing the retaining nuts.
  2. Install the adapter to the transmission.
    3. NOTE: Refer to Fastener Notice .
  3. Install the adapter mounting bolts to the transmission.

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

    4. IMPORTANT: The locating tab on the gasket should always be pointing up.
  4. Install the new gasket to the adapter.
  5. Install the transfer case to the adapter. Refer to Transfer Case Assembly Replacement .
  6. Install the transmission support crossmember. Refer to Transmission Support Crossmember Replacement .
  7. Remove the transmission jack from the transmission.
  8. Check the fluid level of the transfer case. Refer to Transfer Case Fluid Replacement .
  9. Lower the vehicle. Refer to Lifting and Jacking the Vehicle .
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