47s On A Functional Jeep
The ’82 Jeep Scrambler came standard with a 205/75R15 tire. That works out to 27 inches tall. Optional 235/75R15 tires bumped the overall diameter to just shy of 29 inches. But when Robert Johnson rescued his Scrambler from a junkyard, he had a company called A Little 4x4 Company build it for 42-inch Super Swamper Iroks. They seemed big—for a while. Then during a trip back to Roger Little’s shop in Chaparral, New Mexico, Robert saw a set of 47-inch LTBs and the next round up upgrades was on.
Going from 42s to 47s isn’t as big a leap as going from 29s to 42s, but it still takes upgrades. Not just more room for the Super Swamper LTBs via added lift and larger wheelwells, but more beef as well. Robert and Roger turned to Jantz Engineering’s “Jana 76” kit, which uses a Dana 70 ring gear in a Dana 60 house, and then plugged in Moser 40-spline, 1.7-inch axleshafts in the front Dana 60 and rear 14-bolt axle. It must have worked. Robert has been wheeling his Scrambler hard in Las Cruces and beyond with no issues. Just don’t tell him that Interco makes a 54-inch tall tire now.
1982 Jeep Scrambler CJ-8
Engine: 6.0L Gen III V-8
Transmission: 4L80E 4-speed automatic
Transfer case: Advance Adapter 4-speed Atlas II
Front Axle: Dana 60 with Jantz Dana 70 5.13 gears, ARB Air Locker, Moser 40-spline axleshafts, Reid Racing knuckles
Rear Axle: Corporate 14-bolt with Dana 70 5.13 gears, ARB Air Locker, Moser 40-spline axleshafts
Springs & Such: 3-link with 16-inch-travel Fox coilovers and Currie Antirock sway bar (front); triangulated 4-link with 16-inch-travel Fox coilovers and Currie Antirock sway bar (rear)
Tires & Wheels: 17/47-17LT Super Swamper LTBs on 17x9.5 Allied Rock 8 beadlocks
Steering: PSC pump, reservoir, steering box, and hydraulic ram
Other Stuff: Warn 8274 winch, tube fenders, custom rollcage from Little 4x4, Premier Power Welder, Optima Yellow Top battery, MasterCraft Safety Baja RS seats, Tuffy console