New 2024 Chevy Silverado HD Adds Power, Hauling and Safety Technology

For 2024 models, Chevrolet upgraded Silverado HD powertrains starting with a more-powerful 6.6L Duramax turbodiesel, enhanced trailering technology and active safety technology and infotainment improvements.

The lineup includes 2500HD and 3500HD models in Regular Cab, Double Cab and Crew Cab configurations.

Dual-rear-wheel models are available on 3500HD and they support the lineup’s highest trailering capacity: 36,000 lb. The 2024 Silverado HD is available in Work Truck, Custom, LT, LTZ, and High Country trims. The off-road-performance ZR2 package choice will join the HD trim lineup for the first time later in the model year.

Silverado engineers continue to push the Duramax 6.6L turbodiesel V8 engine, and with the 2024 Silverado HD upgrades you get increased horsepower and torque to a GM-estimated 450 hp and 940 pounds-feet of torque (final numbers are pending SAE certification). Additional upgrades aim for more-efficient combustion to improve overall performance. According to GM, its engineers also enhanced low-end torque production by up to 25% for improved performance at low speeds or climbing grades, and particularly when trailering.

For the first time, the Allison 10-speed automatic transmission is now standard equipment for both the Silverado HD’s powertrains: the standard 6.6L V8 gasoline engine and the available Duramax turbodiesel. The Allison replaces the gas engine’s previous pairing with a six-speed automatic, offering smaller steps between the gears, enabling the gasoline engine to operate closer to its peak power more of the time.

The 10-speed helps channel every single pound-foot of torque to the tires in every gear. In turn, the 2024 Silverado HD’s gross combined weight rating with the 6.6L gas engine increases 2,000 lb. to 26,000 lb.

The Allison 10-speed also optimizes grade braking with the gas engine. Closer gear ratios enable greater engine-braking control. Coupled with precise tuning for smooth shifts and quicker downshifts, it complements the feeling of on-demand power and more precise control.

Chevrolet, www.chevrolet.com/trucks/silverado/1500