Brothers With Broncos - 1971 and 1972 Ford Bronco

Engine power passes through an NV4500 five-speed tranny and 5:1 Atlas transfer case. Bonney took a Currie 9-inch axle housing and trussed it for strength and then popped in a Strange Engineering third member.

Up front is a Currie 9-inch axle running 4.86:1 gearing spinning on an ARB air locker. James Duff suspension arms were modified and Bonney created a three-link setup utilizing King coilovers, triple-bypass shocks, and King airbumps to yield about 14 inches of front travel. Hydro assist was added to the pitman arm to help the frame mounted power steering box turn big tires.

Under the fiberglass hood of George’s Bronco you’ll find a lumpy Ford 392 cranking out a dyno tested 323 horses at the 39-inch BFG Krawlers on Walker Evans beadlocks. Charlie and Jason at Pro Dyno in Phoenix tuned the built motor to have a broad powerband.

A full engine cage is tied into the chassis and runs to a Warn 9500-equipped custom front bumper. The narrowed and tubed front end provides an excellent approach angle and great visibility over the tires.

Inside the third member was added a 35-spline Detroit Locker, heavy-duty ring-and-pinion set, and a pair of Strange Hy-Tuf alloy shafts. Disc brakes are used on all four corners.

King airbumps are mounted outboard of the tube chassis in back to limit the upward movement of the axle. Backing that up is a Currie Antirock sway bar as well.

The rear suspension is completely custom using long trailing links in a triangulated four-link configuration. Here, King coilovers, bypasses and airbumps keep the 20 inches of travel in check. Wheelbase sits at 104.5 inches.

Step rails/rock sliders are built into the chassis and show some of the cool fabrication detail on these rigs. George fabricated aluminum skins to finish out the rear body on his Bronco.

Driver and passenger are cradled in Mastercraft suspension seats and held secure with five-point harnesses. A Rugged race radio and on-board intercom makes it easy to communicate over the wind and exhaust noise when flying through the desert.

George and friend Steve went to work narrowing the Bronco and reworked the entire floorboard so it could be boat-sided. Bonney can be credited with all the tube work to complete the revamped chassis. A 24-gallon Fuel Safe cell is mounted over the rear axle and under the tail mounted spare tire.