Chevrolet Silverado / GMC Sierra. Service manual — part 970

Fig. 440: Compressing Shift Valve Spring
Courtesy of GENERAL MOTORS CORP.

9. Using J 43773 (2), compress the valve spring. See Special Tools.

10. Install retaining clip (1). 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

Fig. 441: Spring And Shift Valve
Courtesy of GENERAL MOTORS CORP.

11. Install shift valve 1 (1), spring (2), and plug.

2008 Chevrolet Silverado 1500

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

Silverado

Fig. 442: Compressing Shift Solenoid Shift Valve Spring
Courtesy of GENERAL MOTORS CORP.

12. Using J 43773 (2), compress the valve spring. See Special Tools.

13. Install retaining clip (1). Ensure the retaining clip is below the valve body surface.

Control Valve Body Assembly

2008 Chevrolet Silverado 1500

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

Silverado

Fig. 443: Separating Shift Valve Body Assembly, Separator Plate, And Main Valve
Body Assembly
Courtesy of GENERAL MOTORS CORP.

1. Position main valve body assembly (4) on the work table so that the worm-track side is up.

2. Align separator plate (2) with main valve body locating pins (3).

3. Install separator plate (2).

2008 Chevrolet Silverado 1500

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

Silverado