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2004 GMC Sierra 2500 HD High-Roller

Introducing Maximus, the Six-Door Duramax

Phil Gordon
Jun 19, 2017
Photographers: Phil Gordon
Some of the most creative things are built because someone else gave up on them. That’s exactly how Cocoa Beach, Florida, resident Robert Johnson’s six-door GMC diesel truck was built. As a child, Robert had friends who owned Jeeps, and he was always going four-wheeling with them. Because a lot of his buddies weren’t sure how to work on their Jeeps, his knowledge of repairing and customizing started to grow. At 16, Robert bought his first truck—a lowered Chevy—and he never looked back.
Photo 2/48   |   2004 Gm Six Door Duramax Rear
Robert’s father owned a local car dealership, so not only did Robert grow up around cars and trucks—understanding the value of them became second nature to him. Two of Robert’s friends, Ronald McDonald and Jeff Haynes, found an ’04 GMC Sierra 2500 in a backyard with weeds growing out of it. “It was a carcass,” Robert tells us. “It was essentially left for dead.” Although the truck was covered in moss and mud, his friends had grandiose dreams.
Photo 3/48   |   2004 Gm Six Door Duramax Suspension
Of course, the amount of time and dedication it took to build this truck became overwhelming, but Robert knew this could be his project, and he would see it through. He purchased the Sierra for a reasonable price and immediately got started. He then bought a donor truck, removed the cab, and welded it into the Sierra. A third truck was purchased to transplant the engine, making Frankenstein’s monster a combination of three different rigs.
Photo 4/48   |   2004 Gm Six Door Duramax Wheel
The next step was searching the junkyard to locate a replicate of the interior that would give the feeling of a stock cabin for the not-so-stock cab configuration. Once everything was installed, it was time to work on the suspension. Robert’s friend Jeff made the custom brackets and Robert added a lift kit to bring the six-door sky-high. Robert enlisted Solo from The Solo Element in Orlando, Florida, to work on a one-off custom paintjob that included a woodgrain design using House of Kolor Kandy paint.
Photo 5/48   |   2004 Gm Six Door Duramax Interior Center
Photo 6/48   |   2004 Gm Six Door Duramax Interior
The six-door Duramax is one of the most iconic trucks in the Florida area and turns heads anywhere it goes. Robert wishes to thank his lovely wife, Valerie, and their two kids, Dalton and Dakota. A special thanks also goes to Jeff Haynes, Ronald McDonald, The Solo Element, Auto Detailing Concepts, Hanks Upholstery, and everyone else who helped along the way. Robert owns and manages his own dealership that primarily sells Jeeps. He credits his company, Jeep Emporium, for providing the space to work on the six-door and giving him with the income needed to pay for this show-winning truck.

Tech Specs

Vehicle Year/Make/Model: ’04 GMC Sierra 2500 HD
Vehicle Nickname: Six Door Duramax
Owner: Robert Johnson
City/State: Cocoa Beach, Florida
Body/Paint: Six-door conversion, House of Kolor Kandy woodgrain paint from Solo Element, train horns, LED underglow, wheel, interior lights
Engine: 6.6L Duramax V-8 diesel, six-speed Allison automatic with upgrades, K&N cold-air intake, Wicked Wheel turbo upgrade, boost controller, 4-inch turbo-back exhaust, factory EFI with 90-pound injectors, Bully Dog GT tuner
Suspension: 17-inch lift, custom straight-axle conversion, custom mounts and hangers, custom SAS, Sterling rear, Dana 60 front, 5:13 gears
Interior: Custom black leather seats, orange alligator inserts, black leather door panels with orange inserts, black leather headliner, fiberglass console
Sound System: Kenwood touchscreen TV in-dash, three Memphis Audio 10-inch subwoofers, Memphis Audio components, Monster Cable wires
Wheels/Tires: Fuel 20x14 Mavericks in black and chrome, 44x19.50x20 Super Swamper Boggers



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