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 ...

In the world of off-road performance products, the differential locker is near the top. A differential locker is mechanism that sits inside of or replaces the differential carrier. The job of a locker ...

We take our differentials for granted, right? Of course, we expect our vehicles to navigate turns without scrubbing the inside tires or hopping the outside ones. But how does a diff do that? Look for ...

Push a pickup hard enough, even a heavy-duty model, and something’s going to give. That’s especially true of limited-slips and lockers found under diesel pickups used hard in the construction world.

If you've kept tabs on our '04 4Runner build, you know we've been using an automatic locker in our Currie 9-inch rearend. The automatic locker has done everything we've asked: It's been self-contained ...

GKN Driveline has begun production in the United States of a new electronic differential lock for two- and four-wheel-drive vehicles. The new unit is easier for drivers to use, locks faster and ...

One of the things that Tesla is known for, apart from its loud-mouthed CEO, is its cars’ ability to get better over time thanks to over-the-air software updates. Anything from throttle response and ...