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 earn commissions from purchases you make using links in our articles. Learn more. Most drivers know that regular oil changes are important for keeping their vehicles performing at their peak, but ...

Changing your car's transmission fluid is an important part of its periodic maintenance. You can take it to a shop, but DIY ...

Replacing your transmission fluid can be relatively inexpensive, depending on your vehicle type and whether you do it yourself or have it done by a professional. For manual transmissions, you can get ...

As confused as Blue Oval and Mopar fanatics may be in their misguided hot rodding proclivities, at least they know a good automatic transmission when they see one. How else can you explain the ...

Modern vehicles rely on a host of fluids to send us down the road. Some, like engine oil and coolant, are well-known, while others, like differential fluid, are less-familiar to average motorists.

Need to upgrade your ’05-’10 Mustang's automatic trans? PA has a replacement upgrade for your consideration. Check out the official words after the jump...Performance Automatics 5R55 Super Streeter ...