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Home >> Buick >> 2015 >> Regal GS, AWD >> Repair and Diagnosis >> Transmission >> Transfer Case - AAM >> Repair Instructions - On Vehicle >> Transfer Case Replacement >> Installation Procedure

Installation Procedure

    Fig 1: Transfer Case-To-Transmission O-Ring
    GM2422748Courtesy of GENERAL MOTORS COMPANY
  1. Clean the contact surfaces between the transfer case and the transmission. Install a new transfer case-to-transmission O-ring (1).
    2. Fig 2: Transfer Case-To-Transmission Bolts
    GM3247909Courtesy of GENERAL MOTORS COMPANY
  2. Support the transfer case with a suitable jack, and secure with suitable straps.
  3. Raise and align the transfer case in the correct position in relation to the transmission.
  4. Install the transfer case to the transmission.
    5. CAUTION:

    Refer to Fastener Caution .

  5. Install the five transfer case-to-transmission bolts (1), then tighten the bolts to 110 (81 lb ft).
    6. Fig 3: Transfer Case Support Bracket-To-Transfer Case Bolts
    GM2422653Courtesy of GENERAL MOTORS COMPANY
  6. Install the support bracket (1).
  7. Install the transfer case support bracket-to-transfer case bolts (2).
  8. Install the transfer case support bracket-to-engine bolts (3).
  9. Install the support bracket between the transfer case and the engine carefully in three steps to avoid breakage.
    1. Tighten the support bracket-to-transfer case bolts (2) the first time to 5 (44 lb in).
    2. Tighten the support bracket-to-engine bolts (3) to 60 (44 lb ft).
    3. Tighten the support bracket-to-transfer case bolts (2) the second time to 60 (44 lb ft).
  10. Install the transmission rear mount bracket. Refer to Transmission Rear Mount Replacement (FWD) .
    11. Fig 4: Transfer Case Vent Hose, Strap And Bolt
    GM2422638Courtesy of GENERAL MOTORS COMPANY
  11. Install the transfer case vent hose (2), strap (1), and bolt (3).
  12. Tighten the transfer case vent hose bolt, if equipped, to 22 N.m (17 lb ft).
  13. Install the right drive shaft. Refer to Front Wheel Drive Shaft Replacement - Right Side .
  14. Install the propeller shaft. Refer to Propeller Shaft Replacement .
  15. Install the exhaust front pipe. Refer to Exhaust Front Pipe Replacement (LTG FWD) .
  16. Check the fluid level in the transfer case. Refer to Transfer Case Fluid Replacement .
  17. Fill the transmission with oil. Refer to Transmission Fluid Drain and Fill .
  18. Fill the transfer case fluid. Refer to Transfer Case Fluid Replacement .
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