If you've been searching for a Duramax diesel that can tow, haul, and turn heads — this one checks every box. We've got a 2016 GMC Sierra 2500HD SLT sitting on our lot in Collins, MS right now, and it's not your average three-quarter ton. This truck has been custom lifted, rides on 20-inch forged aluminum wheels, and it's powered by the 6.6L Duramax turbo diesel paired with the Allison 1000 six-speed automatic. That's the drivetrain combination diesel guys from Hattiesburg to Laurel specifically look for.

Why the Duramax and Allison Combination Still Holds Up

The 6.6L Duramax V8 in this generation Sierra is one of the most proven diesel engines on the road. It's B20-biodiesel compatible, makes serious torque, and when paired with the Allison transmission, it delivers the kind of smooth, confident towing that half-ton trucks simply can't match. Whether you're pulling a gooseneck trailer across Jones County or hauling equipment to a job site, this truck was built for it.

At 151,754 miles, this Duramax is well within its working life. These engines routinely run 300,000+ miles with proper maintenance — that's not a sales pitch, that's what diesel owners across Mississippi will tell you from experience.

SLT Trim — Not a Stripped Work Truck

This isn't a fleet truck with vinyl seats and crank windows. The SLT trim on the Sierra 2500HD gives you:

  • Full leather-appointed bucket seats — heated and ventilated

  • 8-inch touchscreen navigation with GMC IntelliLink and SiriusXM

  • Wireless charging pad

  • Power windows, locks, and climate control

  • Spray-on bed liner — already done, no extra cost

  • Deep Garnet Metallic paint with brown leather interior

You get the capability of a heavy-duty diesel with the interior of a truck you actually want to drive every day. A lot of buyers coming from Hattiesburg and the Pine Belt are looking for exactly this — a truck that works hard and rides comfortable.

Custom Lifted — Done Right

This Sierra has been lifted with a clean, well-executed setup. It sits on 20-inch five-spoke forged polished aluminum wheels with LT265/60R20 all-terrain tires. The stance is aggressive without being impractical — you can still tow, still fit in a parking deck, and it rides like a truck that was built this way from the factory.

Priced at $31,990

A lifted Duramax SLT with leather, navigation, and 4WD for under $32,000 — that's a hard truck to find in this market. Compare what you'd pay at a dealership in Jackson or on the Coast for a truck like this. Then come see it in person at Dykes Motors.

We're at 3069 Hwy 49, Collins, MS 39428. Buyers from Laurel, Hattiesburg, Petal, and all across South Mississippi make the drive because we price our trucks honestly and deal with people straight.

Call (601) 641-5475 to ask about this Sierra, or browse our full inventory at dykesmotors.com.

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