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 ...

Follow along as we show you step-by-step how to install a differential and 31-spine axles in your Mustang's 8.8-inch rearend using our 1996 Ford Mustang project car - 5.0 Mustang & Super Fords ...

Horse Sense:When first installed, the Powertrax No-Slip Traction System is one noisy, clanking son-of-a-gun, but the metal-shop noises from our differential were hugely diminished after just 100 miles ...