When it comes to fixing your differential, there’s bad news and good news. The bad news is that differential replacements are expensive, often ranging from $2,500 to $6,000. The good news is that both ...

Your rear differential is one of the most unappreciated parts in your car or truck. It does what might be the hardest job of all of those components, multiplying torque from your transmission and ...

You can’t build a fast, reliable street/strip machine and ignore the rearend. Everyone talks about engines and transmissions, but very few talk about differentials. We believe that’s a mistake because ...

I have a 2007 Ford F-150 with the FX4 package, a little lift, and some larger-than-factory (28575R18) Toyo all-terrain tires. The truck has a ton of miles on it—nearly 200,000 miles—and I noticed the ...

Selecting the best limited-slip or locking differential for your 4x4 depends on many factors, including the type of off-roading you do, how much time you spend off-road, your driving style and ...