Out back a 2 1/2-ton Rockwell steer axle has replaced the Eaton axle from 2001. It has Ouverson Violator 2-inch, 47-spline axleshafts, an Ouverson spool, Patooyee’s Parts pinion brake with line lock, and an Ouverson Bull Gear Stud Girdle. A four-link system with spherical rod ends and Ballistic Fabrication brackets locates the axle and the upper links are made from 2-inch-diameter, 0.250-inch-wall tubing, while the lower links are made from 2.5-inch-diameter, 0.500-inch-wall tubing. Like the front, the rear uses 16-inch-travel Sway-A-Way dual-rate remote-reservoir coilover shocks. Pro Comp by Beard limiting straps keep the suspension from extending too far, a center-mounted 4-inch Energy Suspension polyurethane bumpstop helps to cushion the final inches of uptravel, and a Speedway Engineering sway bar with custom arms keeps sway at bay. Waddell points the big 54s with a hydraulic steering system that has its own PSC pump, PSC ram, and Stazworks joystick control.