Tag: American Powertrain

Pro-Fit 5 and 6 Speed C-10

New Pro-Fit 5-speed and 6-speed System For 1973-87 Chevy Squarebody Trucks The “Squarebody” Chevy truck is growing in popularity, so American Powertrain introduces their new Pro-Fit 5-speed and 6-speed system. This new Pro-Fit system features the rock solid TREMEC TKO 5-speed…