Tools Required

J 44809 Seal Installer
J 44915 Seal Installer

Use the J 44809 (2) in order to install the right axle shaft oil seal (1).

Fig 1: Installing Right Axle Shaft Seal
Courtesy of GENERAL MOTORS CORP.
Use the J 44809 (2) in order to install the left axle shaft oil seal (1).

Fig 2: Installing Left Axle Shaft Seal
Courtesy of GENERAL MOTORS CORP.
Lubricate the O-ring seal (4) and oil seal (2) sealing surface with gear oil GM P/N 12378514 (Canada P/N 88901045).

Fig 3: Installing Seal and "O" Ring To Pinion Housing
Courtesy of GENERAL MOTORS CORP.
Install the O-ring seal (4) in order to install the oil seal (2) into the pinion housing (3).
Install the pinion and housing assembly (1) and shim (2) to the differential (3).

Fig 4: Installing The Pinion And Housing Assembly
Courtesy of GENERAL MOTORS CORP.
Install the bolts (1) to the differential.
Tighten Tighten the bolts to 10 N.m (106 INCH lbs).

Fig 5: Installing Pinion Housing-To-Differential Bolts
Courtesy of GENERAL MOTORS CORP.
Install the torque tube (1) to the differential (2).

Fig 6: Installing The Torque Tube To The Differential
Courtesy of GENERAL MOTORS CORP.
Install the bolts (1) to the differential.

Fig 7: Installing The Torque Tube To Differential Bolts
Courtesy of GENERAL MOTORS CORP.

Tighten Tighten the bolts to 25 N.m (18 lb ft).

Important DO NOT tighten the bracket nut and bolt (1 and 7) at this time. The bracket bolt and nut are to be tightened after the differential assembly is installed into the proper position in the vehicle.
Install the spacers (3 and 6) to the tube flanges.
Install the bracket (4), bolt (7), washers (2 and 8) and nut (1) to the tube.

Fig 8: Installing Torque Tube Bracket
Courtesy of GENERAL MOTORS CORP.
Install the O-ring seals (1 and 2) onto the clutch pump check valve (3).
Install the valve (3) and bolts (4 and 5) to the differential.
Tighten

Tighten the valve bolts to 10 N.m (106 lb in).

Fig 9: Installing Clutch Pump Check Valve
Courtesy of GENERAL MOTORS CORP.
Install the vent hose assembly (1) and clamp (2) to the differential (3).

Fig 10: Installing Vent Hose Assembly
Courtesy of GENERAL MOTORS CORP.
Install the oil drain plug (2) and gasket to the differential.

Fig 11: Installing Drain Plug (2) To Differential
Courtesy of GENERAL MOTORS CORP.

Tighten

Tighten the drain plug to 32 N.m (23 lb ft).