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