1965-1987 GM TH400/375 Automatic Transmissions. Vitour Performance Tires Re-engineered to be the only

Re-engineered to be the only true performance AC/Delco style DIS coil

Offering AN hose end wrenches

The floats have corner cuts to avoid shutting off the fuel flow during hard cornering

To lift the rear we include OEM style 3" tall cast rear lift blocks with built in bump stop landing pads

are offered in two styles: with the heat-shield hood and without

1965-1987 GM TH400/375 Automatic Transmissions. Vitour Performance Tires Re-engineered to be the onlyThe B&M Transpak is the next step up from the B&M Shift Improver kit. It has all the features in the Shift Improver kit, plus it provides additional driver manual control (GM TH 400, 350, Ford C 6 and Chrysler Torqueflite only). B&M Transpak kit for 1965 1987 GM TH400 375 automatic transmissions. Most stock automatic transmissions won't downshift into low gear above 15 mph, and automatically upshift at a predetermined speed no matter what gear you're