Harsh, Soft, Delayed or Slipping Second or Sixth Gear

WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. 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 2-6 clutch plates (452 and 454). Inspect for damaged 2-6 clutch backing plate (451). Inspect for worn splines on backing plate. Inspect for damaged 2-6 clutch backing plate retaining ring (450). Inspect for damaged 2-6 clutch piston assembly (457), spring (456), retaining ring (455), and center support assembly (459).