The Chrysler LLC Cummins 68RFE is a six-speed automatic transmission engineered primarily to power the group's SUVs and heavy-duty trucks. It was first introduced for the Dodge RAM series in 2007, and ...

There is the right way to tune. There is the wrong way to tune. And there is hot rodding. Since the first speed part was bolted onto a car, we’ve been doing it one of these ways with varying degrees ...

Practically every transmission specialty manufacturer offers some type of valve body shift improver kit. The most basic kit simply reduces shift overlap and provides a firmer shift. More exotic kits, ...

APR, a longstanding Volkswagen and Audi tuner based in Alabama, has released new software that optimizes the behavior of Haldex AWD systems for speed and performance. While APR has released many ...

I've seen many people forgetting about transmission when upgrading a car, and ending up calling a tow truck the same day they turned on the newly improved engine. And all of them told me that they ...

How to flash xhp transmission tune on your g80 m3, m340i, supra, or any bmw! I flashed xhp on my bmw M340i until I sold it for my G80 m3. Now, lets flash an xhp trans tune on my G80! Here's a step by ...

Perhaps the single most expensive (and destroyed) part of a diesel pickup is the transmission. From the 400-lb-ft Ram back in 1989 to the 800-plus-lb-ft numbers of the current Big Three, diesel ...

Few cars have surprised and delighted us as much as the Hyundai Veloster N, which is a rip-roaring good time with its raucous turbocharged four-cylinder and dialed-in chassis. That same Hyundai N ...