Chevrolet Silverado / GMC Sierra. Manual - part 967
Fig. 428: Identifying Control Relief Spring & Control Relief Valve
Courtesy of GENERAL MOTORS CORP.
5. Install the control relief valve (1) and spring (2).
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - Allison - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &
Silverado
Fig. 429: Compressing Control Relief Valve Spring
Courtesy of GENERAL MOTORS CORP.
6. Compress the spring with J 43773 (2). See Special Tools.
7. Install the retaining clip (1).
8. Make sure the retaining clip is below the valve body surface.
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - Allison - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &
Silverado
CONTROL VALVE BODY ASSEMBLE
Tools Required
J 33163 Valve Tray Set. See Special Tools.
J 43773 Valve Spring Compressor. See Special Tools.
Main Valve Body Assemble
Fig. 430: Locating Exhaust Pressure Regulator Valve & Spring
Courtesy of GENERAL MOTORS CORP.
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - Allison - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &
Silverado
1. Install the exhaust backfill valve (1) and the spring (2).
Fig. 431: Compressing Exhaust Pressure Regulator Valve Spring
Courtesy of GENERAL MOTORS CORP.
2. Compress the exhaust backfill spring with J 43773 (2). See Special Tools.
3. Install the retaining clip (1). Ensure the retaining clip (1) is below the valve body surface.
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - Allison - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &
Silverado