To understand the benefits of a limited-slip differential (often abbreviated to “LSD” in automotive literature) you have to ...

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 ...

The first time I fell in love with the twin diff locks on my C304 was when I and 20 motorists got bogged on a bitumen road. We had been to see the dinosaur footprints near Winton in Queensland. The ...

In garages, on trails, and around campfires, debate will always rage over what single modification is most effective in creating a capable 4x4. Is there one magic mod that can dramatically improve ...

Driving with the diff lock engaged on dry pavement isn't just a bad habit. It's a quick way to strain your drivetrain and make the whole car feel off. The tighter the corner, the worse it gets. Your ...