There are several basic rear axle types used in 4x4s, and each have specific design pros and cons. Axle designs can vary in load handling, bearing and flange type, and gearset configuration. In this ...

We decided to cut through the brand-loyalty blindfold to take a clinical look at the 12-bolt, the Ford 9-inch, and the Dana 60 rear axles. We obtained a 3.50:1-gear version of each of these three rear ...

In the automotive world, especially when it comes to off-road trucks and SUVs, differentials come up all the time. Is your differential locking, limited slip or open? Do you have a transfer case? One ...

First, how are semi-float and full-float axles different? In a semi-floating axle, there is an axle shaft on each side that is splined on the inner end where it mates to the differential. Each end ...

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 ...