Last month we dug deep into the 8.75-inch rear end assembly from our 1971 Dodge Challenger R/T project. Like the vast majority of Mopar muscle cars, our 383 automatic Challenger came equipped with the ...

A ring-and-pinion change is one of those mechanical operations that's both simple and complex. It's far below heart surgery, but many four-wheelers still act like they'd rather tackle open heart ...

Few things are more annoying than seal leaks of any kind. They stain the driveway and lose all-important lubrication at the same time. Even more frustrating is replacing a seal in a differential that ...