It's the 4L80E that’s become the go-to choice for backing a big-power/big-torque engine, and for good reason. With its roots in the TH400, which was used with GM’s biggest-torque big-block engines of ...

We feel compelled to start this report by letting you know one of the most important facts regarding installing an Allison 1000 six-speed automatic transmission in a 6.0L, 6.4L, or 7.3L Ford Power ...

Forget things like nuclear power, lasers, and freeze-dried ice cream. When it comes to back-engineered alien technology, the automatic transmission is a marvel of seemingly otherworldly intelligence.