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Cummins Diesel 1984 Jeep Grand Wagoneer

Posted in Project Vehicles on March 1, 2012 Comment (0)
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Cummins Diesel 1984 Jeep Grand Wagoneer

Toby Boyer didn’t know he wanted a Cummins-powered Grand Wagoneer, but a few years ago he headed to Moab with his friend Todd Farrand from Mercenary Off-Road for the Easter Safari, and after a week of watching folks climb slickrock and traverse boulder fields he started to get the itch for a rig of his own. On the drive home Toby mentioned wanting a 4x4 and the discussion lasted most of the drive back to California.

Toby Boyer wanted a Jeep for wheeling, and his friend Todd Farrand from Mercenary Off-Road suggested a Grand Wagoneer. The wood-paneled ’84 Jeep came home tired and crusty, but a perfect platform for a trail tractor.

Toby wanted a Jeep of some sort and Todd suggested a Wagoneer, claiming he could build one like no other. From there the build snowballed, from a basic cruiser to a trail monster to the diesel wagon you see here. We found them on their inaugural run again at Moab after the two-year buildup and are convinced they built a Jeep to envy.

Tech Specs
1984 Jeep Grand Wagoneer
Engine: ’981⁄2 5.9L Cummins diesel, Power Puck programmer, custom intercooler, FASS fuel air separator
Transmission: 47RE
Transfer case: 3.8:1 Atlas II
Front Axle: ’98 Ford Dana 60 4.56 gears, Detroit Locker
Rear Axle: GM Corp. 14-bolt, 4.56 gears, ARB Air Locker, Mercenary Off-Road disc brake conversion
Springs & Such: Atlas custom leaf springs, Poly Performance BBCS shocks, Offroad Design shackles, 3⁄4-inch U-bolts, Mercenary Off-Road spring plates
Tires & Wheels: 39x13.50R17 BFGoodrich Krawler TAs on Hutchinson 17-inch beadlocks
Steering: Lee Mfg. upgraded stock gear box, pump, and hydraulic ram assist; Mercenary Off-Road pitman and high-steer steering arms and links
Other Stuff: Mercenary bumpers, rocker panels, Warn Endurance 12,000-pound winch, Great Lakes diff cover, Driveline Tech driveshafts

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