Underneath the Ford bodywork is a trick custom tube chassis. It’s easy to spot—just look for anything bright green. The chassis is made from 1¾-inch-diameter tubing and integrates such things as front and rear winch mounts (for the front Warn 8,000-pound and rear 16,500-pound winches). The chassis also has a rear mount for the tire carrier and Howe radiator. The Ford’s factory fenders have been radiused to allow the big 46-inch-diameter Mickey Thompson Baja Claw tires (mounted on 16x12 Stazworks double beadlock wheels) to travel without contacting the rig’s body. The truck has a wheelbase of 128 inches, which Keller says is 10 inches longer than stock. He removed the center of each rear longbed fender to create 5-foot-long bedsides. The result of Keller’s design is a rig with great approach and departure angles and a trail-friendly center of gravity for a fullsize rig rolling on 46s.