Product Overview
4L30E, 1-2 Shift Valve (Sonnax) (84754-23K)
Automatic Transmission Shift Kit (All Models, Includes Pump Alignment Tool And New Design Support Bushing) (SK-4L30E). Corrects or reduces chronic low band failure, slipping in 1st and 2nd gear, 2-3...
Pump Boost Valve, 4L30E (Small Ratio Stamped 066) (1990-Up)
Valve Body Kit, 4L30E (Shift Kit) Trans Lab (1990-Up) (TL-4L30) (41D02)