Transmission Conversion and Accessories for your GM Transmission Conversion and Accessories for your Mopar Transmission Conversion and Accessories for your Ford American Powertrain American Powertrain
 
Return to the Home Page of American Powertrain Request A Quote on a ProFit Transmission System - Modern Overdrive Tremec TKO500, TKO600, T5, and T56 systems for 4-spd, 5-spd and 6-speed Conversions Although it's more fun to DRIVE IT, you can Speed Analyze your new Modern Overdrive Tremec TKO500, TKO600, T5, and T56 systems for 4-spd, 5-spd and 6-speed Conversions. We carry a full line of Performance Parts & Accessories for our Modern Overdrive Tremec TKO500, TKO600, T5, and T56 systems for 4-spd, 5-spd and 6-speed Conversions Transmission Installers and Service Companies on Modern Overdrive Tremec TKO500, TKO600, T5, and T56 systems for 4-spd, 5-spd and 6-speed Conversions for your new System. If you know a good Installer, please send them our way. Information about how to Place and Order, Shipping, Warranty, Returns, Policies, Etc. (Also see menu items for specific information) This website contains a lot of information and instructions on your transmission conversion from Tips and Tricks, to Installation Pictures and Instructions. Should you need further help, our Customer Service Reps and Owners (Enthusiasts ourselves) are always here to help you 24/7. Just call, write, or stop by!


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GM Models
Bel Air
Camaro 67-69
Camaro 70-81
Camaro 82-92
Camaro 93-02
Chevelle 64-67
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Chevy II 62-67
Chevy II 68-72
Corvette C1
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Firebird 67-69
Firebird 70-81
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GTO 64-67
GTO 68-72
Impala 60-69
Nova 62-67
Nova 68-72
GM Truck
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'79 overdrive equipped Corvette 1968-1982 Corvette (C3) Transmissions & Accessories
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ProFit™ Systems   
The ProFit™ Systems are the easiest and most economical way to put a high strength, modern overdrive Tremec TKO 5-speed transmission or T56 6-speed transmission in your car. Our Custom Engineered ProShift™ Tailhousings and Shift Mechanisms provide the smoothest operation, the shortest throws and the only true internal offset in the business. Enjoy a ProFit™ transmission with low RPM cruising, and great fuel economy today.
 
5 Speeds
ProFit™ 5-Speed
System
1968-82 Corvette Ultimate Fit Deluxe Kit
This kit is perfect for upgrading your Corvette 4-speed manual transmission to a 5-speed overdrive.
 
5 Speeds
 ProFit™ 5-Speed System
for Automatics
1968-82 Corvette Ultimate Fit Elite Kit
This kit is perfect for upgrading your Corvette automatic transmission to a 5-speed overdrive.
 


 
5 Speeds
TREMEC 5-Speed
Bare Unit
TKO-500 / TKO-600
Basic 5-Speed Kit
This kit is perfect for upgrading your Corvette 4-speed manual transmission to a 5-speed overdrive.
 
6-Speed
Systems
 




6 SPEED KITS
AVAILABLE FOR A
LIMITED TIME !
 
 
 


   
   
SuperShift™ Systems
Only American owertrain's SuperShift™ Systems provide every component needed to replace your stock transmission with an overdrive 4-speed automatic, right down to a stock appearing 4-Speed Shift Selector for the console. Install SuperShift™ in a weekend and begin enjoying the hot performance, great fuel mileage, extended cruising range and quiet highway operation of The SuperShift™ System without decreasing the value of your car.
 
5 Speeds
American Powertrain's SuperShift™ Overdrive Automatic System
1968-1982 Corvette SuperShift™ Overdrive Automatic System
 
SuperShift to an overdrive automatic system when converting your C3 Corvette.
   


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Crate Engines for GM Crate Engines  
 
 
GM Bellhousings Bellhousings  
 
 
ProGrip Flywheels Flywheels  
 
 
GM Scattershields and Flexplates Scattershields  
 
 
GM Scattershields and Flexplates Flexplates  
 
 
Clutches Clutches  
 
 
GM Mechanical Linkage Mechanical Linkage  
 
 
HYDRAMAX Hydraulic Clutch Kits Hydraulic Actuators  
 
 
GM Pedals Pedals  
 
 
GM Shifters Shift Handles  
 
 
Custom Gearshift Knobs Custom Shift Knobs  


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The following are Trademarks of The Driven Man, LLC and are for the sole use of its companies and assignees.
Any other use without written permission of The Driven Man, LLC is prohibited:
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Ceramix™, Organix™, ProTwin™, TKOExtreme™, TKO600Extreme™, 600Extreme™, Hydramax™, 3650S™, 3650Plus™, 3650Extreme™, T45S™, T45Plus™, T45Extreme™, T5R™, T5S™, T5Plus™, T5Extreme™, ProGrip™, ProFit™, ProBuilt™, T56Plus™, T56Extreme™
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