Turn heads and tow with confidence — this 2008 GMC Sierra 2500HD SLT Duramax Diesel Z71 4x4 with the Allison 1000 6-speed automatic is a real workhorse, this truck pairs serious capability with comfortable, well-appointed SLT trim. It’s in excellent overall condition, has a clean CARFAX, and shows below 149,000 miles (averaging under 8,000 miles per year) — a great balance of use and longevity. Here is what you get with this beauty - a PRE-DEF Duramax 6.6L Turbo Diesel V8 delivering 365 hp and a stout 660 lb-ft of torque — plenty of low-end grunt for towing and hauling.- Allison 1000 6-speed automatic transmission for smooth, durable shifting under load.- Z71 4x4 off-road hardware for extra confidence when the road gets rough.- Factory-installed towing provisions including an integrated trailer brake controller and full trailer wiring — ready for trailers right away. - AM/FM stereo with MP3 compatibility and a 6-disc CD changer for long drives or jobsite playlists.- Spray-in bedliner to protect the bed from wear, weather and cargo. Heavy-duty chassis and suspension designed for 3/4-ton capability: beefy frame, strengthened springs/shocks and components built for towing and heavier loads. - Four-wheel antilock disc brakes with traction control to help manage stopping with confidence, whether empty or loaded.- Four-wheel drive system with Z71 off-road enhancements (upgraded suspension tuning and protective underbody components) to take you off the beaten path when you need to.- Durable cooling and drivetrain systems engineered for diesel use — heavy-duty radiator, oil and transmission cooling to keep everything running cooler under hard work.- Comfortable SLT interior appointments: premium Ebony trim, well-bolstered seating with power-adjustable and heated front seats and a roomy layout with a large center console — comfort and convenience for long days -power windows, locks and mirrors, remote keyless entry, cruise control and tilt steering for driver comfort and easy operation. This 2008 GMC is in excellent overall condition inside and out locally owned and thoughtfully cared for. It boasts a clean CARFAX report for added peace of mind. And it has below 149,000 miles — averaging under 8,000 miles per year, which is light use for a durable truck of this vintage. If you need a dependable diesel-powered 3/4-ton with real towing capability, proven Allison durability, and a comfortable SLT interior, this Sierra 2500HD checks the boxes. The combination of Duramax torque, Allison transmission, Z71 4x4 capability, built-in towing hardware and protective spray-in bedliner makes it equally at home on the jobsite, the ranch, or hauling a camper for a weekend getaway. Interested? Come see it in person or get in touch to schedule a test drive — don't let this one slip away! t