GMC’s Transparent Trailer View technology has also been improved to support goosenecks and fifth wheels. It operates like a traditional adaptive cruise control system, but factors in additional drag and increased braking distances when towing a trailer. Key among them is adaptive cruise control with trailering support. On the topic of towing, there are several new and improved features to make trailering easier. If that’s not enough, the 3500 HD can tow up to 36,000 lbs (16,329 kg). In other configurations, the Sierra 2500 HD can tow up to 22,500 lbs (10,206 kg) which is 4,000 lbs (1,814 kg) more than the outgoing model. Heavy-duty trucks are all about towing, so the pickup has a new Max Tow Package that will enable the Sierra HD 2500 Crew Cab to have a best-in-class towing capacity of up to 21,900 lbs (9,934 kg). New Towing Features And Improved Capabilities While it carries over, the gas engine is now paired with a 10-speed Allision transmission that replaces the old six-speed gearbox.
That’s an increase of 25 hp (19 kW / 25 PS) and 65 lb-ft (88 Nm), and GMC noted low-end torque production climbs by up to 25% for improved towing performance.Ĭustomers can also opt for a familiar 6.6-liter V8 that develops 401 hp (299 kW / 407 PS) and 464 lb-ft (628 Nm) of torque. Thanks to these and other changes, the engine produces 470 hp (350 kW / 477 PS) and 975 lb-ft (1,320 Nm) of torque.
The updates continue under the hood as there’s an improved 6.6-liter Duramax turbodiesel engine that features a new turbocharger, optimized cylinder heads, and a revamped combustion system with higher-flow injectors.
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