Chevrolet Silverado / GMC Sierra. Service manual — part 776

Fig. 113: Manual Shift Shaft and Parking System Components Overhaul (6L80/6L90)
Courtesy of GENERAL MOTORS CORP.

Callout

Component Name

1

Manual Shaft Detent Lever Hub Pin

NOTE:

Refer to Pin Reuse Notice .

2

Manual Shift Shaft Pin

NOTE:

Refer to Pin Reuse Notice .

Manual Shift Shaft

NOTE:

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - 6L50/6L80/6L90 - Cab & Chassis Sierra, Cab & Chassis Silverado,

Sierra & Silverado

MANUAL SHIFT SHAFT SEAL REPLACEMENT

3

Tip: Refer to Manual Shift Shaft Seal
Replacement.

Ensure the manual shift shaft seal is replaced before
installing the shaft. Installing the seal after the shaft
may cause damage to the seal, resulting in fluid leaks
and transmission damage.

4

Manual Shaft Detent Lever Assembly

5

Park Pawl Actuator Assembly

6

Park Pawl Actuator Guide Pin

Tip: Use a large pair of side cutters to "walk" the
pin out.

NOTE:

Refer to Pin Reuse Notice .

7

Park Pawl Actuator Guide

8

Park Pawl Actuator Guide (O-ring) Seals

NOTE:

Refer to Seal Reuse Notice .

9

Park Pawl
Tip: Inspect for damage only. Do not remove. The
park pawl is not a serviceable component.

10

Park Pawl Spring
Tip: Inspect for damage only. Do not remove. The
park pawl spring is not a serviceable component.

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - 6L50/6L80/6L90 - Cab & Chassis Sierra, Cab & Chassis Silverado,

Sierra & Silverado

Fig. 114: Manual Shift Shaft Seal Replacement
Courtesy of GENERAL MOTORS CORP.

Callout

Component Procedure

1

Manual Shift Shaft Seal

Special Tools

DT 47770 Seal Installer. See Special Tools.

NOTE:

Do not damage the case bore during removal of the
manual shift shaft seal.

NOTE:

When installing the seal, ensure the seal lip is firmly
seated against the case bore surface. Do not allow the
seal lip to be crushed, or a leak may result.

NOTE:

Refer to Seal Reuse Notice .

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - 6L50/6L80/6L90 - Cab & Chassis Sierra, Cab & Chassis Silverado,

Sierra & Silverado

OUTPUT SHAFT SEAL REPLACEMENT (AWD MODELS ONLY)

Fig. 115: Output Shaft Seal Replacement (AWD Models Only)
Courtesy of GENERAL MOTORS CORP.

J 45201 Cooler Line Seal Remover. See
Special Tools.

Callout

Component Name

1

Output Shaft Seal Assembly

Special Tool

NOTE:

Refer to Seal Reuse Notice .

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - 6L50/6L80/6L90 - Cab & Chassis Sierra, Cab & Chassis Silverado,

Sierra & Silverado