Going through Duke’s Customs (near Denver), the shop where Big John (as he likes to be known) is manager, is like going through some sort of Frankenstein-like automotive laboratory. Amidst a slew of collectibles like a ’48 Ford F-100 and a Deuzenberg, there are even more bizarre projects, like a twin-turbo Callaway Corvette about to meet the skin of a ’69 Stingray.

Across the warehouse from this hybrid is an all-electric ’66 Mustang with hemp seats. And, yes, it’s green and may be giving the Tesla a run for its money once it’s complete. After we shot his truck, John had to go meet someone to sell one of his other toys, an Aston Martin.

Duke’s garage, or warehouse as it should be called, is filled to the brim with automotive chicanery but what do you suppose this manager’s daily driver is? That’s right, an oil burner. But not just any oil burner. This ’06 GMC 2500HD is one of the few examples rolling around on massive 24-inch rims and definitely the only truck with these humongous hoops in the Denver greater city limits where John stays.

Originally from California, John came out to Denver a few years back to get away from “a spot of trouble,” which may or may not be why he doesn’t want his last name used. But who are we to pry, right? Let’s hear more about his rig. He traveled back and forth a lot before finally settling here around November 2007. It was then that he acquired the GMC. He immediately had it lifted, then the rest of the work was done at his shop in less than a month. And the rest as they say, is history.

All The Facts
’06 GMC 2500HD
CST lift, completely powdercoated
24-inch Novakane 8 BMF wheels
38x14x24 Kuhmo tires
Hand-polished skidplate
Hand-polished driveline
Hand-polished bag cups
Firestone Ride-Rite bags
AMP Research boards
Spin Tech exhaust
Leather and suede interior
Kenwood DNX7120 All-In-One navigation
10-inch headrest monitors
2 Rockford Fosgate subs
2 Rockford Fosgate amps
ATS E-Power electronic tuner
Backup camera for easy trailer loading
Airbag controls mounted in the bumper