Today a lot of street-legal vehicles and off-road rigs run modern coil spring suspensions. Coil springs in their various formats have a number of advantages over traditional leaf springs and torsion ...

Jeep TJ and JK Wranglers aren't the only rigs out in the backcountry, but they do represent a big, fat chunk of the rigs you'll find there. We decided to assemble a collection of suspension systems ...

"Coil bind" occurs when a spring's coils stack solid at or before full camshaft lift. This develops an infinite load on the valvetrain, causing its weakest link to fail. If you're lucky, the result is ...