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.

BorgWarner Provides Advanced 4WD Couplings for New VW Crafter


BorgWarner Provides Advanced 4WD Couplings for New VW Crafter

BorgWarner has recently informed that the up-to-date VW Crafter vehicle will be equipped with 2 variants of its electro-hydraulically activated 4WD coupling.


This space-saving and light-weighted engineering 4WD concept ensures well-spread torque between forward and back axles that result in enhanced torque-carrying capability, fuel efficiency and better car responsiveness on various types of the road surface. The difference between two options of coupling offered by BorgWarner lies in the fact that one model includes a differential locking control, when the other one operates without this mechanism.


To satisfy high standards specified by VW and deal with fixed back axle of Crafter, BW engineers supplemented the 4WD coupling design with the differential locking control. This mechanism operates via newly-designed ECU with installed software which ensures wanted road performance, allows gentle starts by providing better traction in the case when one wheel is on the surface with some degree of adhesion and the other is not. Due to the fact that 4WD coupling operates regardless of the differential speed between the forward and the back axle, full locking torque may be activated at any moment, taking into account the state of the road surface and car load balance.

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.