This 2003 GMC Sierra 2500HD SLE is an Extended Cab 4×4 pickup that is powered by an 8.1-liter Vortec V8 mated with an Allison five-speed automatic transmission, a dual-range transfer case, and a locking rear differential. It was acquired by the seller on BaT in January 2025, and work since that time has involved installing a front suspension leveling kit, Cognito front upper control arms, Fox shocks, a PPE rear differential cover, a RealTruck tonneau cover, Baja Designs LED cube lights, and a rearview mirror with an integrated backup camera display as well as replacing the front CV axles, tires, and various brake components. Finished in Arrival Blue Metallic over Dark Pewter cloth, the truck is further equipped with 16″ polished aluminum wheels, a power-adjustable driver’s seat, dual-zone climate control, a trailer brake controller, and an in-dash CD changer. This GMT800 Sierra HD has 57k miles and is now offered with manufacturer’s literature, two key fobs, an accident-free Carfax report, and a clean California title in the seller’s name.

The truck is finished in Arrival Blue Metallic with black fender flares and has been fitted with a RealTruck tonneau cover and Baja Designs LED cube lights. Additional details include an Ameraguard spray-on bedliner, a receiver hitch, mudguards, tubular side steps, and power-adjustable side mirrors. The windshield was replaced, and the roof was repainted under previous ownership.

Polished 16″ eight-lug aluminum wheels were wrapped in 285/75 Cooper Adventure A/T tires under current ownership. A front suspension leveling kit has been installed along with Cognito front upper control arms and Fox shocks. Anti-lock braking is provided by discs at all four corners. The brake pads and rotors are noted to have been replaced in January 2026.

The 40/20/40-split front bench and fold-up rear bench are upholstered in Dark Pewter cloth and are joined by color-coordinated door panels and carpets. A trailer brake controller was installed under the dashboard, and a rearview mirror with an integrated backup display has been fitted. Appointments include a power-adjustable driver’s seat, dual-zone climate control, cruise control, an in-dash CD changer, and power windows and locks.

The steering wheel frames a 120-mph speedometer, a tachometer, and auxiliary gauges for transmission temperature, fuel level, oil pressure, voltage, and coolant temperature. The digital odometer indicates 57k miles, approximately 5k of which have been added under current ownership.

The 8.1-liter Vortec V8 was factory rated at 340 horsepower and 455 lb-ft of torque. The vehicle most recently passed a California emission test in February 2025, and the oil cooler lines were replaced in May 2025.

Power is routed to the rear or all four wheels via an Allison five-speed automatic transmission, a push-button dual-range transfer case, and a locking rear differential. The transmission was serviced under previous ownership, and work under current ownership involved replacing the front CV axles, changing the differential fluids, and installing a PPE rear differential cover.

The Carfax report shows at least one open recall.