American PowerTrain - GM

Transmissions - GM

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Transmissions - GM - Tremec Magnum Close Ratio
6-Speed Close Ratio. Great for road course and the strip.
Transmissions - GM - Tremec Magnum Wide Ratio
6-speed Wide Ratio. Great for everyday driving, better cruise RPM.
Transmissions - GM - Tremec TKO500 Quick Launch
5-Speed. Great for everyday driving.
Transmissions - GM - Tremec TKO600 Road Race
5-Speed. Geared for road course racing. Close Ratio.
Transmissions - GM - Tremec TKO600 Street and Strip
5-Speed for street and strip use. 600ft-lb rated
If you don’t know what you need call our technical sales staff at 931-646-4836 ext 107
  • Tech Line Support Our tech lines are manned 7:00 AM – 7:00PM CST M-F. Plus, we have a call back service on weekends and holidays.
  • Expert Enthusiasts American Powertrain's team is manned by experienced enthusiasts with years of installation experience.
  • 2 Year Warranty Industry leading 24-month warranty from date of installations with 2-year installation grace period.
  • Fast Shipping Domestic and international shipping experts. Fast freight and overnight service available on all in stock items.