Harsh, Soft, Delayed or Slipping First or Reverse Gear

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2008 GMC Yukon XL, 2008 GMC Yukon, 2008 Chevrolet Tahoe, 2008 Chevrolet Suburban, and 2008 Cadillac Escalade EXT. However, it is still accessible from the selected car via links, so may be relevant.

Checks	Causes
Center (with 2-6 Low and Reverse Clutch) Support Assembly (67)	Inspect for damaged or worn low and reverse clutch plates (463 and 465). Inspect for damaged low and reverse clutch backing plate (462). Inspect for worn splines on backing plate. Inspect for damaged low and reverse clutch backing plate retaining ring (461). Inspect for damaged low and reverse clutch piston assembly (470), spring (469), spring retaining ring (466), and center support assembly (459). Inspect for damaged low clutch sprag assembly (467). Holding the sprag assembly with the retaining ring facing up, and the inner race of the sprag assembly fixed, the outer race should freewheel counterclockwise. Inspect for cut, worn, or damaged low clutch sprag seal (468).

Checks

Causes

Center (with 2-6 Low and Reverse Clutch) Support Assembly (67)

Inspect for damaged or worn low and reverse clutch plates (463 and 465).
Inspect for damaged low and reverse clutch backing plate (462). Inspect for worn splines on backing plate.
Inspect for damaged low and reverse clutch backing plate retaining ring (461).
Inspect for damaged low and reverse clutch piston assembly (470), spring (469), spring retaining ring (466), and center support assembly (459).
Inspect for damaged low clutch sprag assembly (467). Holding the sprag assembly with the retaining ring facing up, and the inner race of the sprag assembly fixed, the outer race should freewheel counterclockwise.
Inspect for cut, worn, or damaged low clutch sprag seal (468).