Redesigned Silverado HD series replaces old C/K models, follows styling lead of lighter-duty Silverado 1500/2500. This report covers mainstay 3/4-ton 2500 and 1-ton 3500 pickups, though chassis-cab and chassis cutaway models are also offered.

Both HD Silverado series are available with rear-wheel drive or 4WD that must be disengaged on dry pavement but includes low-range gearing. Optional on 2500 is General Motors' Autotrac 4WD that can be left engaged on dry pavement.; optional on 3500 is an electric-shift transfer case. Both series come in choice of regular cab, an extended cab with rear-hinged back half-doors, and a Crew Cab with four full-size front-hinged doors. All can be ordered with front bucket seats or a 40/20/40 split bench. The extended and Crew cab include a three-person rear bench. HD 3500s come only with an eight-foot cargo box ; 2500s offer a 6.5-foot box as well. All 3500s have dual rear wheels on each side.

All models have standard dual dashboard airbags, ABS, 4-wheel disc brakes; some offer GM's OnStar assistance system. Base engine is a 6.0-liter V8. Optional are a new 8.1-liter V8 and new 6.6-liter Duramax turbodiesel V8. Base engine teams with 5-speed manual transmission or optional 4-speed automatic with Tow/Haul mode. The two larger engines have a new 6-speed manual or newly optional Allison 5-speed automatic with Engine Grade Braking, an electronic feature that makes an automatic downshift when descending steep slopes. Payload and tow ratings are claimed to be best in class. Silverado HD is similar to GMC Sierra HD.