Starting with the Bronco frame foundation, the Ford Performance team knew it needed a Raptor-specific version for increased suspension travel and track width for handling stability during high-speed desert runs. At the Raptor core is a fully boxed, high-strength steel frame with new shock towers that increase wheel travel and off-road durability. Heavy-duty bash and skid plates provide continuous driveline coverage from the front bumper to the back of the engine, transmission and transfer case. In the upper body, B-pillar cross bar and C-pillar reinforcement help deliver a greater than 50% total body-in-prime torsional rigidity increase over a standard Bronco four-door model.
Competition-level, Ford Performance-developed axles, also used on the Bronco DR race truck, further deliver on the Ultra4-inspiration. The solid rear axle is upgraded to a semi-float Dana 50™ Heavy-Duty AdvanTEK® with 235-millimeter ring gear, while the Dana 44™ AdvanTEK front-drive unit includes upgraded half-shafts with 210-millimeter ring gear. These upgraded front and rear axles increase the track width by 8.6 inches (73.6 inches versus 65.0 inches) over a base Bronco for even more sure-footed confidence. Larger front and rear driveshafts support increased wheel torque. Bronco Raptor also runs with a minimum ground clearance of 13.1 inches, 4.8 inches more than a base four-door model.
An advanced 4×4 system with three modes includes a higher-capacity clutch designed to withstand the demands of high-performance desert events. The upgraded transfer case also features a 3.06 4×4 LO ratio for up to 67.7:1 crawl ratio.
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