The belly of the rig is incredibly smooth and well protected by 1/2-inch plastic skidplating. Safely tucked out of harm's way is the rig's Atlas 5.0 32-spline transfer case. It splits the 6.0L's power to the axles via a pair of custom driveshafts. Both shafts have CVs at the transfer case. The rear 'shaft has a 1410 U-joint at the axle and the front 'shaft has a 1350 U-joint at the axle.