400, 3L80 Reverse Cushion Kit

Valve Body Kit, Reverse Cushion Kit, 3L80, 400 Corrects Harsh & Bang Reverse (1965-1998)

Reverse Boost Valve Kit (“Factory” Style) (S34507RCK) (34910-05K)

Reverse Boost Valve Kit (Includes O-Rings) (S34507RK) (34910-01K)

3L80, 400 Automatic Transmission Bushing Kit without Center Support (1965-1998)

Transm. Changeover Kit, 700-R4 to 400 (4wd) (Blazer, P/U Suburban 4.3L & V8) (85-Up) (7-40C) (7-40C)