Pinion angle simply refers to the angle of the differentials pinion in relation to the driveshaft. But ask 10 guys about optimal pinion angle and a lively debate will ensue. To get a range of opinions ...

This story was originally published online December 14, 2017, and has been edited and reformatted by Tim Bernsau. Building a hot rod means working all the angles, and there are plenty of angles to ...

If you own a JK, you're going to want to lift it. And when you do, you're going to be thinking about how much lift, long arms or stock, which wheels, and how much tire. What you're probably not ...

Driveshafts do a big job in our Fords, Mercs, and Lincolns. They take a powertrain's rotary motion and carry it to the differential and drive axles. This is not an easy task. Not only must a ...