Chevrolet Silverado / GMC Sierra. Service manual — part 848

Fig. 32: Engaging Inner Wire And Lock Both Wires Together
Courtesy of GENERAL MOTORS CORP.

5. Push the end of the transmission end (3) inside the shifter end (1) until the blue spring (2) on

the transmission end (3) is fully compressed, this will engage the inner wire and lock both
wires together.

2008 Chevrolet Silverado 1500

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

Silverado

Fig. 33: Tension/Adjust Cable System
Courtesy of GENERAL MOTORS CORP.

6. Release the transmission end (3) and allow the spring (2) to tension/adjust the cable system.

7. Pull the white cover (5) on the shifter end (1) back.

8. Push the natural colored lock button (4) down to engage the locking teeth on the

transmission end (3).

IMPORTANT: DO NOT hold the transmission end (1) during this operation,

this will result in a mis-adjusted cable.

2008 Chevrolet Silverado 1500

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

Silverado

Fig. 34: View Of White Cover & Natural Colored Lock
Courtesy of GENERAL MOTORS CORP.

9. Release the white cover (1).

10. Verify the white cover (1) conceals the natural colored lock (2).

MANUAL SHIFT SHAFT, DETENT LEVER, AND POSITION SWITCH ASSEMBLY
REPLACEMENT

Removal Procedure

2008 Chevrolet Silverado 1500

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

Silverado

Fig. 35: Detent Lever/IMS Retaining Bolt
Courtesy of GENERAL MOTORS CORP.

1. Remove the control valve assembly from the transmission. Refer to Control Valve Body

Replacement.

IMPORTANT: The detent lever/IMS retaining bolt contains patch lock

2008 Chevrolet Silverado 1500

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

Silverado