American Powertrain Archives - Brake & Front End
Tremec Pro-Fit TKX 5-Speed Systems For Classic Corvettes

The new TKX features a streamlined case for improved fitment with zero tunnel modifications.

American Powertrain Introduces New 6-Speed X-Factor Crossmember For Early Model Mustangs

American Powertrain now offers a bolt-in aluminum crossmember for 1964-73 Ford Mustangs designed to fit TREMEC 6-speed transmissions that requires no modifications to the tunnel or chassis for installation.

American Powertrain Announces New Pro-Fit 5- And 6-Speed System For 1978-1987 GM G Body Vehicles

Designed around the TREMEC TKO 5-speed and the dual overdrive Magnum 6-speed transmissions, the Pro-Fit kits features a custom adjustable cross member, custom high-strength driveshaft, trans mount, offset shifter and speedo solution.

American Powertrain Announces New Pro-Fit 6-Speed System For 1968-’82 C3 Corvettes

The system looks like the original 4-speed transmission with the correct shifter position in the factory console, according to the company.