The XJ Cherokee is a prime candidate for suspension modifications. Con-quering the Jeep Speed Challenge and traversing the world's most rugged trails has earned the XJ prominence among four-wheelers.

Toby Furnas likes to whoop it up in his '83 CJ. We've heard him yell out a "Yeehaw" and even a "Git 'em" when the trail starts getting nasty. His friends say it's because he's fairly deranged, but ...

For the time being, the most off-road Silverado is the Trail Boss while the Sierra equivalent is known as the AT4. Superlift Suspension can do better than General Motors, though, with the help of a ...