New Pro-Fit Kits from American Powertrain

American Powertrain, the biggest TREMEC dealership, has presented the next-gen Pro-Fit 5- and 6-speed solutions for 1978-1988 GM G Body. Developed on the basis of the TREMEC TKO 5-speed and the dual overdrive Magnum 6-speed gearboxes, these professional fit kits consist of a custom-built tunable cross-arm, robust driveshaft, gearbox support, offset shifting mechanism and speedometer unit. The G-body kit also is offered to facilitate the swap process to the manual gearbox.



The company can also sell all components of these kits independently to meet the needs of potential customers more efficiently. What is more, American Powertrain is considered to be one of the leaders in provision of gearbox installation solutions. All Pro-Fit kits are backed by 24 month warranties and include extra hours of technical support service.


Thanks to the products of American Powertrain, customers can enjoy the following benefits:

  • Significant growth in fuel economy
  • Driving at low revs, minimizing driver’s tiredness and improving highway driving experience
  • Lower engine wear-out
  • Reduced working temperature of the engine



About American Powertrain

The company is specialized in providing owners of performance-oriented cars with advanced drivetrain solutions, overdrive gearbox units, clutch kits and a variety of related components. Since its entry in the transmission business, the company has gained recognition in the US and become the biggest TREMEC dealer. All products of the company are developed and manufactured in the United States and meet high quality standards. The company employs experienced and highly-skilled specialists committed to their job.



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