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Home >> Cadillac >> 2005 >> STS 3.6 7 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 11 (Transfer Case - BW 4476/79) >> Repair Instructions >> Transfer Case Assembly Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different variant/trim than selected.
IMPORTANT: The front propeller shaft must be lines up with the front output shaft at the same time that the input is being slid onto the transmission output shaft and the dowel pins are engaged. The front propeller shaft is too long and can not be installed after the transfer case mounting face is bolted in place to the transmission. The transfer case needs to be loose and slid back slightly so that the cone shape of the constant velocity (CV) joint can be engaged into the front output shaft.
    Fig 1: View Of Transfer Case
    GM830369Courtesy of GENERAL MOTORS CORP.
  1. Apply grease GM P/N 1051344 (Canadian P/N 993037), or equivalent, on the input splines starting from the front edge to 10 mm inward in a continuous pattern around the inside diameter (ID) of the splines to completely fill the splines.
  2. Install the transfer case.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
  3. Install the transfer case-to-transmission bolts.

    Tighten:  Tighten the case-to-transmission bolts to 60 N.m (44 lb ft).

  4. Remove the support from the transfer case.
    5. Fig 2: Installing Propeller Shaft To Transfer Case Flange
    GM901932Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Ensure that the coned end of the propeller shaft CV joint is installed into the transfer case flange.
  5. Untie the front propeller shaft and position to the transfer case.
  6. Install the propeller shaft to the transfer case flange.
    7. Fig 3: Installing Propeller Shaft CV Joint-To-Differential Flange Bolts
    GM859586Courtesy of GENERAL MOTORS CORP.
  7. Inspect the propeller shaft to flange bolts. Replace if damaged or worn.
  8. Thoroughly clean the threads using denatured alcohol or equivalent and allow to dry. Apply threadlock GM P/N 12345493 (Canadian P/N 10953488), or equivalent, to the propeller shaft to flange bolts. Ensure that there are no gaps in the threadlock along the length of the filled area of the bolt. Allow the threadlock to cure approximately 10 minutes prior to installation.
  9. Install the propeller shaft to transfer case flange bolts. Ensure that the crescent washers are in place on each pair of bolts.

    Tighten:  Tighten the bolts in sequence to 30 N.m (22 lb ft).

    10. Fig 4: View Of Transmission Mount
    GM888315Courtesy of GENERAL MOTORS CORP.
  10. Install the transmission mount.
  11. Install the transmission mount-to-transmission bolts.

    Tighten:  Tighten the mount-to-transmission bolts 110 N.m (81 lb ft).

    12. Fig 5: Supporting Transmission With Jack & Block Of Wood
    GM830398Courtesy of GENERAL MOTORS CORP.
  12. Install the transmission mount-to-body bolts.

    Tighten:  Tighten the mount-to-body bolts to 60 N.m (44 lb ft).

  13. Remove the support from the transmission.
    14. Fig 6: View Of Exhaust System
    GM1215598Courtesy of GENERAL MOTORS CORP.
  14. Install the rear propeller shaft. Refer to Propeller Shaft Replacement - Rear (AWD) or Propeller Shaft Replacement - Rear (RWD) in Propeller Shaft.
  15. Install the exhaust system. Refer to Exhaust System Replacement in Engine Exhaust.
  16. Refill the transfer case with fluid. Refer to Transfer Case Fluid Replacement .
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