Chevrolet Silverado / GMC Sierra. Manual — part 955

Courtesy of GENERAL MOTORS CORP.

1. Install a new output shaft bushing (2) onto J 43791 (1). See Special Tools.

2. Using J 43791 , drive the bushing into the output shaft (3) until J 43791 (1) is seated to

specification. See Special Tools.

Specification: Make sure the bushing is pressed flush to 0.25 mm (0.01 in) below the
output shaft surface.

LOW AND REVERSE CLUTCH HOUSING ASSEMBLY ASSEMBLE

Tools Required

J 36850 Transjel® Lubricant. See Special Tools.

Assemble

2008 Chevrolet Silverado 1500

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

Silverado

Fig. 386: View Of OSS Reluctor Wheel & Output Carrier Support Bearing
Assembly
Courtesy of GENERAL MOTORS CORP.

1. Position the low and reverse clutch housing so that the outside of the housing is facing

down.

IMPORTANT: The low and reverse clutch housing, 4WD does not contain

2008 Chevrolet Silverado 1500

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

Silverado

2. For 2WD transmissions, install the OSS reluctor wheel (2).

3. Gently tap the output carrier support bearing assembly (3) into the low and reverse clutch

housing.

Fig. 387: Locating Low and Reverse Clutch Housing Retaining Ring
Courtesy of GENERAL MOTORS CORP.

an output speed sensor (OSS) reluctor wheel.

2008 Chevrolet Silverado 1500

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

Silverado

4. Install the retaining ring (1).

Fig. 388: View Of Low And Reverse Clutch Piston, Seal & Seal Ring
Courtesy of GENERAL MOTORS CORP.

5. Install seal ring (1) and seal ring (2) onto the low and reverse clutch piston (3). Lubricate

the seal rings with J 36850 or an equivalent lubricant. See Special Tools.

2008 Chevrolet Silverado 1500

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

Silverado