I once drove a K5 Blazer from the bottom of the country to Idaho and back. I did so with 39-inch tires, a 500hp big-block, three transmission speeds, no climate control, no top, earplugs, and a very ...

Lower gearing is a pillar of off-road performance. It allows the engine to turn bigger tires more easily and move your 4x4 over trail obstacles. But adding gearing has often meant expense in axle ...