Harsh, Soft, Delayed or Slipping First, Second, Eighth, Ninth, Tenth, or Reverse Shift
WARNING: This page is about a different car, the 2023 GMC Sierra 3500 HD and 2023 GMC Sierra 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
| Checks |
Causes |
| 1-2-8-9-10-Reverse Clutch Assembly |
- Inspect for damaged or worn 1-2-8-9-10-Reverse clutch plates (419, 420).
- Inspect for damaged 1-2-8-9-10-Reverse clutch piston (415), return spring (416).
- Inspect for damaged 1-2-8-9-10-Reverse clutch backing plate retaining ring - selective (424).
- Inspect for damaged 1-2-8-9-10-Reverse clutch backing plate (421). Inspect for worn splines on backing plate.
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