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1991 GMC Suburban: Doomsday Diesel Part 7

Plumbing, Cooling, and Power Generation

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Our Doomsday Diesel project was born from the idea that owning a diesel makes you more prepared for all the worst-case scenarios life can throw at you. We’ve been building this diesel-engine-swap project as a showcase for bulletproof technologies, and as a way to learn about (and share) ways to make diesel vehicles more reliable—not just more powerful.

Doomsday Diesel began life as a ’91 GMC Suburban 2500 4x4 with a gasoline engine backed by GM’s 4L80E four-speed automatic transmission. During the last year, we stripped the truck down to the frame and have been building it back up with a 5.9L Cummins, AAM 1150 rear axle, Dana 60-based frontend, and the whole truck rolls on a set of 37-inch-tall tires that would be at home on a military Humvee.

When choosing the parts for our build, we wanted pieces that were off-the-shelf common. That ideology helps keep the costs down, means there’s lots of options, and if society ends—we’ll be able to get spare parts. One of the unexpected bonuses of the vehicle we’ve chosen (’73 to ’91 Suburban) is that LMC Truck in Lenexa, Kansas, sells nearly enough parts to build this vehicle from scratch!

SOURCES
Automotive Racing Products
1863 Eastman Avenue
Ventura
CA  93003
800-826-3045
http://www.arp-bolts.com
Earl's Performance Plumbing
1801 Russellville Road
Bowling Green
KY  42101
866-464-6553
http://www.Holley.com
Be Cool
310 Woodside Avenue
Essexville
MI  48732
800-691-2667
http://www.becool.com
Mercenary Off Road
Sun Valley
CA  91352
www.mercenaryoffroad.com
Mag-Hytec
14718 Arminta Street
Van Nuys
CA  91402
818-786-8325
www.mag-hytec.com
Odyssey Batteries
2366 Bernville Road
Reading
PA  19605
800-538-3627
http://www.odysseybattery.com
K&N Engineering
1455 Citrus Street
Riverside
CA  92507
800-858-3333
http://www.knfilters.com
TCI Auto
888-776-9824
www.TCIAuto.com
LMC Truck
15450 W. 108th Street
Lenexa
KS  66219
800-562-8782
http://www.lmctruck.com
Nicktane
916-716-8999
www.nicktane.com
Industrial Injection
1201 South 700 West
Salt Lake City
UT  84104
800-955-0476
www.industrialinjection.com
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