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 ...

The popularity of Jeep XJ Cherokees (1984-2001) is continuing to grow as off-road enthusiasts find more and more reasons to fall in love with one of Jeep’s most popular SUVs of all time. The Unitbody ...

We've all heard that the Ford 9-inch is the strongest rearend you can buy. According to the Ford guys at least, it's also the best overall decision for strength and durability. If pressed, they'll ...

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 few weeks ago, I went to the amazing Auburn Cord Duesenberg Automobile Museum in Indiana, where I learned about an axle that has not just one gear ratio like in pretty much all modern cars, but two.