The dual rear wheel pickup truck is a phenomenally simple solution to an equally simple problem. See, each and every tire on the road has a load rating, and if you need to pull a bigger load, you might need more tires. However, not every dual rear wheel pickup truck exists out of sheer need for capability. For instance, this 1989 GMC S-15 recently auctioned on Cars & Bids looks like it’s wearing its dad’s suit thanks to a very unusual axle conversion.
If this S-15 was stock, it would still be a curiosity simply due to how well-kept it looks. With fewer than 12,000 miles under its belt, absurdly neat upholstery, and mirror-like paint, it’s a time capsule of the late 1980s, a testament to outstanding preservation. With the optional robust 4.3-liter V6 under the hood churning out and understressed 160 horsepower and 230 lb.-ft. of torque, these little GMCs are great trucks that will get you everywhere you need to go.
Of course, this S-15 is a curiosity because it isn’t stock. It’s almost like someone took a one-ton Sierra and run it through a shrink ray. Sure, the period-correct cab visors may have something to do with it, but the star of the show is this little truck’s six-wheeled status. Yes, someone has crammed a dually axle under the frame, which means that each rear corner sports two wheels. A massive set of fender flares cover the extra rubber, and high-offset front wheels finish the look.
So why might someone turn a GMC S-15 into a dually? Could more tires equal more capability? Theoretically, they might, but legally, GCWR is GCWR. Just because you can pull more than your truck’s rated at doesn’t mean the state will be okay with it. Traction also probably isn’t a huge issue in an S-15, so it’s unlikely that the extra tires are there to assist in the perfect launch. However, questionable performance characteristics really don’t matter here. The extra wheels definitely improve the truck, but probably not in the way you’d expect.
A small pickup truck with a dually conversion makes for a great visual prank, a way of screwing with peoples’ sense of scale. Is it far away? Is everything else huge? It’s a gasoline-powered double-take generator in addition to an artifact from a different time. Minitrucking wasn’t all spokes and hydraulics, you know.
In any case, whoever paid $11,555 for this GMC S-15 dually spent their money well. Clean, stock examples of these trucks now go for a proper mint, so this pristine dually conversion seems like fantastic value. Like a Lamborghini, it could turn you into an overnight celebrity. Unlike a Lamborghini, there’s no whiff of Bitcoin about it.
(Photo credits: Cars & Bids)
Support our mission of championing car culture by becoming an Official Autopian Member.