When you see a big American pickup truck sporting a dark exterior finish with brown stripes and aftermarket additions, the late 1970s often comes to mind. This custom truck was born over a decade after disco, but we wouldn’t blame you if you struggled to recognize both its era and its origin. This really is a 1990 GMC Sierra 3500 double, and if you dig it you can buy it right now for the tidy sum of $ 19,995.
This extremely custom pickup is currently on sale on ClassicCars.com, but it’s not some weird, unique widebody conversion built in someone’s shed. Knudsen Automotive Design (now Rage Exotic Vehicles) created a range of kits in the 1980s, including the Tridon body kit seen here. The Sierra already had a wide rear with its dual design, but there’s no denying the dramatic wide body look of those Testarossa-themed side vents that flow into the rear quarter panels. The front fenders also got bigger, and the pointed nose completely obscured the flat face shared by the GMC and Chevrolet pickups of the day.
Photo credit: ClassicCars.com
As for this particular platform, it is listed as being in good general condition with 60,000 miles displayed on the odometer. The paint is obviously rough in shape and the fiberglass body kit has some imperfections. Underneath is a different (and better) story with a plethora of mechanical maintenance carried out over the last 15,000 kilometers. The tanned interior would be immaculate, and judging by the photos (more of which are available on the listing), we’re inclined to agree. Under the hood is GM’s old 454 cubic inch (7.4 liter) V8 connected to a three-speed automatic transmission, driving dual rear wheels to the rear.
$ 20,000 certainly isn’t cheap for a 31-year-old GMC Sierra, especially with this seemingly rear-drive-only truck. However, the listing says the Tridon conversion was a $ 12,000 option at the time, and with this rig only having 60,000 miles, it’s hard to say if you’ll ever find another example like this.