Manual Shift Shaft and Parking System Components Overhaul (6L80/6L90)

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 GMC Yukon XL, 2012 GMC Yukon, 2012 Chevrolet Tahoe, 2012 Chevrolet Suburban, and 2012 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Overhauling Manual Shift Shaft and Parking System Components

Courtesy of GENERAL MOTORS COMPANY

Callout	Component Name
1	Manual Shaft Detent Lever Hub Pin CAUTION: Refer to Pin Reuse Caution .
2	Manual Shift Shaft Pin CAUTION: Refer to Pin Reuse Caution .
3	Manual Shift Shaft CAUTION: 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. TIP: Refer to Manual Shift Shaft Seal Replacement .
4	Manual Shaft Detent Lever Assembly
5	Park Pawl Actuator Assembly
6	Park Pawl Actuator Guide Pin CAUTION: Refer to Pin Reuse Caution . TIP: Use a large pair of side cutters to "walk" the pin out.
7	Park Pawl Actuator Guide
8	Park Pawl Actuator Guide (O-ring) Seals CAUTION: Refer to Seal Reuse Caution .
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.