TCI Front Pump Drives allow you to run without a torque converter where legal and can reduce rotating mass by anywhere from 15 to 30 lbs. compared to running a converter. This reduced mass improves off-the-corner acceleration and engine braking in the corners which lowers transmission operating temperatures. Front Pump Drives require a specially designed valve body sold by TCI and are adjustable for non-motor plates and 1/8" and 1/4" motor plates. Allow race transmissions to run without a converter. Reduce rotating mass by 15-30 lbs. Reduced mass improves off-the-corner acceleration and engine braking in corners to reduce transmission temps. Requires special valve body. Adjustable for non-motor plates 1/4" and 1/8" plates.