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 ...

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 ...