Fits all 1970up C4 transmissions. Full manual valve body w/o engine braking in 1st gear. Features Reverse shift pattern. PRN123 Stays in the gear you select and will not auto shift. Governor and vacuum modulator components not required.
This is a reverse pattern full manual valve body with engine braking in 1st gear. Low/reverse band is applied in 1st gear for engine braking. Good for use in trucks or any application in which extra sprag protection is required. Fits 1970up C4 and C5 transmissions. Does not require governor or vacuum modulator.
This is a rebuilt valve body with special modifications for use in 1965-1969 C4 transmissions. Has the more desirable shift pattern used in the 1967-1969 models PRND21. Eliminates the 1965-1966 Green Dot style shift pattern. Choose from stages 1 to 3. Stage 1 being soft like stock and 3 a hard performance type shift. PLEASE...