Popular articles

Probably every transmission repair specialist was keen on LEGO constructions or at least enjoyed making some minor things with their hands. Here's the game taken to a new level of creativity!

Modern auto industry is full of sophisticated drivetrain technologies which are supposed to make your driving experience even more pleasant and trouble-free. Despite a great abundance of sophisticated technical solutions, it is highly likely that very few people know a transmission solution operating like a manual CVT.

Over recent years engineers developed a lot of gear shifting solutions for different car brands, which may seem a bit unusual for oldtime drivers. In this article we will review the most peculiar gear stick technologies and provide video materials related to these technologies.

Only few people know about transmission concepts which were popular 70-90 years ago. For men of today, these gearboxes may seem very unusual and weird, but even now some gearboxes that date back to those years are quite competitive in comparison with modern transmissions.

Nowadays Extroid CVTs are commonly known as “toroidal” due to the fact that the working surface of driving and driven discs in this transmission has the form of a torus. Extroid CVT is not a V-belt transmission, but a friction drive CVT.

New Pro-Fit Kits from American Powertrain


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.

Popular articles

Probably every transmission repair specialist was keen on LEGO constructions or at least enjoyed making some minor things with their hands. Here's the game taken to a new level of creativity!

Modern auto industry is full of sophisticated drivetrain technologies which are supposed to make your driving experience even more pleasant and trouble-free. Despite a great abundance of sophisticated technical solutions, it is highly likely that very few people know a transmission solution operating like a manual CVT.

Over recent years engineers developed a lot of gear shifting solutions for different car brands, which may seem a bit unusual for oldtime drivers. In this article we will review the most peculiar gear stick technologies and provide video materials related to these technologies.

Only few people know about transmission concepts which were popular 70-90 years ago. For men of today, these gearboxes may seem very unusual and weird, but even now some gearboxes that date back to those years are quite competitive in comparison with modern transmissions.

Nowadays Extroid CVTs are commonly known as “toroidal” due to the fact that the working surface of driving and driven discs in this transmission has the form of a torus. Extroid CVT is not a V-belt transmission, but a friction drive CVT.