Re-Program Your Valve Body for Heavy-Duty Towing or Street/Strip Action

A ''do-it-yourself'' valve body kit designed to be used in vehicles that do a lot of towing, or you can upgrade to a street/strip application. Eliminates slippage and lag, gives you a harder, more ''positive'' shift and allows you to downshift the vehicle when the need occurs. If extra power is needed, you will be able to shift manually and be able to hold first gear on 3-speed transmissions until you shift to a higher gear. When vehicle remains in drive it will still be fully automatic. Vastly improves the 2nd and 3rd shift and helps extended clutch and band life. TH-350 kit includes filter.