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.

Transtar Renews Partnership with Subsidiaries of Marmon Transmission Group


Transtar Renews Partnership with Subsidiaries of Marmon Transmission Group

Transtar Industries has reached a long-standing partnership agreement with Sonnax and Rostra Powertrain Controls, subsidiaries of Marmon Transmission Group. While details of the deal are still kept secret, the prolongation of this fruitful partnership is great news for the whole transmission aftermarket industry and in particular for repair shops, which get a reliable access to the top-quality auto components, including driveline and high performance.


According to Transtar, the professional integrity of both Marmon businesses will become a great asset for auto repair specialists for many years to come. Transtar puts in great efforts to ensure that its customers get only top-quality drivetrain components – and partnership extension with Sonnax and Rostra is a big step in this direction.


Learn more about Sonnax ZipKits used by many transmission rebuilders


Sonnax also expressed a lot of enthusiasm about this deal, as this type of collaboration has become an efficient tool in providing repair shops with necessary spare parts without any delivery delays. Thanks to high professionalism and absolute reliability of all parties, transmission rebuilders can be sure that they won’t have any issues in obtaining required spare parts.


Learn more about Rostra shift solenoids and their application


According to Rostra representative, the company spares no efforts and financial resources in development of advanced electronic parts to make sure that Transtar can always meet the needs of its customers.


Rostra and Sonnax are an important part of Marmon Holdings. Marmon is a global industrial organization, which includes more than one hundred subsidiaries. Last year, profits of the company moved beyond $8.1 bln. The Sonnax goal is to be a leading provider of cutting-edge, top-quality drivetrain elements to the auto aftermarket, while Rostra focuses on production and supply of powertrain electronics.

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.