You push a truck hard enough – even a heavy duty model – and something’s going to give. When mechanic Dave Adair cracked the diff locker on his 2007 Chevy 2500 HD, he decided to step up to something ...

Locking differentials are a definite game changer when it comes to off-roading. They increase traction by forcing both tires on an axle to turn. But what is a locking differential? Car people will ...

Building a heavy-duty rearend for your Mopar used to mean either buying a Sure Grip 8 3/4 or going for the famed Dana 60. Often, due to cost or availability, neither is realistic. Fortunately, there ...