Case Cover Assembly (403)

Inspect for plugged or improperly positioned low and reverse piston (408) air bleed.

Low and Reverse Clutch

• Inspect for improper surface finish on low and reverse clutch plates (449–453).
• Inspect for damaged or worn low and reverse clutch plates (452).
• Inspect for damaged low and reverse clutch backing plate (453).
• Inspect for worn splines on backing plate (453).
• Inspect for damaged low and reverse clutch piston assembly (408), spring (409), and spring retaining ring (410).
• Inspect for fatigued or binding low and reverse clutch piston return spring (409).
• Inspect for broken low and reverse clutch wave plate (449).

Lower Valve Body

Inspect for stuck 4‑5‑6 clutch boost valve.