4WD mastery has always been at the core of the Jeep® brand. You can expect to Go Anywhere, Do Anything® in a Jeep vehicle, thanks to more than 70 years of tried and true off-road craftsmanship. Wrangler has two 4WD systems: Rock Trac® and Command-Trac®. Heavy-duty sill guards (a.k.a. rock rails) are bolted directly to the frame for added body strength and to resist twisting when sliding over rocks and boulders. Added Jeep capability is evident from Wrangler's outstanding ground clearance.