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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1030 (Transfer Case - Mp 1625/1626-NQF) >> Repair Instructions - Off Vehicle >> Transfer Case Assemble >> Transfer Case Rear Case Half Installation

Transfer Case Rear Case Half Installation

WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: View Of Transfer Case Seals, Brackets & Bolts
GM1846046Courtesy of GENERAL MOTORS CORP.
Transfer Case Rear Case Half Installation

Callout Component Name
1 Transfer Case Two/Four Wheel Drive Actuator Seal
2 Sealer GM P/N 12345739 (Canadian P/N 10953541) or Equivalent
NOTE: Apply the proper amount of sealant to the flange when assembling the transfer case. Excessive amounts of sealant can plug the oil pump screen, resulting in internal component failure.

Tip: 
  • Ensure both sealing surfaces of the front and rear case halves are free of dirt, oil, and cleaning solvent.
  • Apply a 2 mm (0.078 in) bead of sealant to the front case half.
3 Transfer Case Rear Case Half
Tip: 
  • Ensure the transfer case rear output shaft outer retaining ring is in place and aligned prior to mating case halves.
  • Use snap ring pliers to open the transfer case rear output shaft outer retaining ring for the transfer case rear output shaft rear bearing assembly.
  • Insert a rubber coated screwdriver into the speed sensor hole and lift up on the reluctor wheel to engage the retaining ring with the rear bearing assembly.
4 Transfer Case Bracket
5 Transfer Case Bolts (Qty: 17)
NOTE: Refer to Fastener Notice .

Tip:  Tighten the bolts by hand. Do not use an air gun.

Tighten:  25 N.m (18 lb ft)