Product#: TR7532

1955-57 Bel Air; 59-69 Impala; Full-size Passenger Car; American Powertrain TKX 5-Speed Driveline Conversion Kit; 600ft-lb Constant Load Rated; Wide Ratio; 0.68 O.D.

American Powertrain ProFit Conversion combo kits include the components required to convert your vehicles manual driveline to a modern Tremec TKX 5 speed manual overdrive transmission. Specially prepped case mods for easier...

Product#: TR1021

UltraCase M22Z 4 Speed Transmission: M22 CLOSE RATIO 2.98-1st, 2.04-2nd, 1.46-3rd. 1.0 4th; 10/27 Spline; Bolt Levers

There are exotic transmissions designed for the quarter mile or circle tracks, but if your Muscle Car sees city streets or country lanes you need a heavy-duty, synchronized, close-ratio gearbox with a helical gearset and, to...

Product#: TCET17722

American Powertrain TKX 5-Speed Tremec Transmission; GM Applications; 26-Spline; Close Ratio: 0.81 O.D.

These American Powertrain Tremec TKX 5-speed series overdrive high performance transmissions. Available in (Road Race) edition and offers a variety of flexibility features and is rated at 600 ft/lbs, includes a unique...

Product#: TR7533

1955-57 Bel Air; 1959-69 Impala;Full Size Passenger Car; American Powertrain Magnum 6-Speed Transmission Conversion Set; Close Ratio; 0.63 O.D.

American Powertrain ProFit conversion kits include the components required to convert your vehicles manual driveline to a modern Tremec Magnum 6 speed manual overdrive transmission. Includes a Magnum 6 speed (Close Ratio)...

Product#: TR7534

1955-57 Bel Air; 1959-69 Impala; Full Size Passenger Car; American Powertrain Magnum 6-Speed Transmission Conversion Set; Wide Ratio; 0.50 O.D.

American Powertrain ProFit conversion kits include the components required to convert your vehicles manual driveline to a modern Tremec Magnum 6 speed manual overdrive transmission. Includes a Magnum 6 speed (Close Ratio)...

Product#: TCET18083

American Powertrain TKX 5-Speed Tremec Transmission; GM Applications; 26-Spline; Quick Launch Close Ratio; 0.72 O.D.

These American Powertrain Tremec TKX 5-speed series overdrive high performance transmissions. Available in (Quick Launch) edition and offers a variety of flexibility features and is rated at 500 ft/lbs, includes a unique...

Product#: TCET17805

American Powertrain TKX 5-Speed Tremec Transmission; GM Applications; 26-Spline; Wide Ratio: 0.68 O.D.

American Powertrain Tremec TKX 5-speed series overdrive high performance transmission. The TKX 5-speed offers a variety of flexibility features and is rated at 600 ft/lbs, includes a unique internal shaft-rail system, 26...