The Keisler PerfectFit™ System is the
easiest and most complete way
to put a high strength, modern overdrive Tremec TKO 5-speed
transmission in your 1970-1981 Camaro or Firebird. Our Keisler
Custom Engineered PerfectShift™ Tailhousings and Shift
Mechanisms provide the smoothest operation, the shortest throws
and the only true internal offset in the business. Enjoy a
PerfectFit transmission with low RPM cruising, and great fuel
economy today.