Chevrolet Silverado / GMC Sierra. Service manual — part 987

Fig. 492: Locating Thrust Bearing Assembly
Courtesy of GENERAL MOTORS CORP.

4. Apply J 36850 or equivalent lubricant to the thrust bearing assembly (1). See Special

Tools.

5. Align the thrust bearing (1) so that the blue stripe on the thrust bearing is facing towards the

input carrier assembly.

6. Install the thrust bearing (1) into the input carrier assembly.

NOTE:

Installing the thrust bearing incorrectly may cause permanent
damage to the transmission.

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - Allison - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado

Fig. 493: Identifying 1-2-3-4, 4-5-6 Clutch Assembly
Courtesy of GENERAL MOTORS CORP.

7. Install the 1-2-3-4, 4-5-6 clutch assembly (1).

8. Rotate the clutch assembly until the assembly seats.

9. Make sure one of the following is visible through the turbine speed sensor hole in the

transmission case:

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - Allison - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado

The teeth of the PTO gear

The teeth of the turbine tone wheel

TORQUE CONVERTER HOUSING WITH FLUID PUMP ASSEMBLY INSTALLATION

Tools Required

J 36850 Transjel® Lubricant. See Special Tools.

J 45023 Control Main Filter Wrench. See Special Tools.

Installation

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - Allison - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado

Fig. 494: View Of Torque Converter Housing with Fluid Pump Assembly
Courtesy of GENERAL MOTORS CORP.

CAUTION: The torque converter housing/oil pump cover assembly

dry weights are approximately 27 kg (60 lb). To help avoid

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - Allison - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado