The 2015 Chevrolet Silverado 2500HD is offered in regular cab, double cab and crew cab body styles with a choice of two- or four-wheel drive. The regular cab is available only with a long bed (8 feet), while the double cab and crew cab models can be mated to either a standard bed (6.5 feet) or a long bed.

Trim levels start at the base Work Truck, step up to midlevel LT and then top out at the upscale LTZ, though the LTZ is not available with a regular cab. Unlike its 3500 big brother, the Silverado 2500HD is not available with a dual-rear-wheel (DRW, or "dually") axle.

The regular cab Work Truck, or WT, trim comes with chrome bumpers, 17-inch steel wheels, rubber floor covering, a choice of cloth or vinyl upholstery, a 40/20/40-split front bench with a fold-down center armrest, power door locks, cruise control, a tilt steering wheel, a 4.2-inch color display and a four-speaker audio system with USB/iPod integration and an auxiliary audio jack. Double cabs and crew cabs get six speakers as standard.

The LT trim adds alloy wheels, tinted rear windows, an upgraded tailgate, keyless entry, full power accessories, carpeting, Chevy's MyLink interface, smartphone integration, voice controls (cell phones and music), OnStar telematics, a CD player, satellite radio, Bluetooth phone and audio connectivity and a leather-wrapped steering wheel.

The LTZ trim adds 18-inch alloy wheels, foglights, power-folding mirrors, an automatic locking rear differential, a heavy-duty trailering package (with integrated trailer brake controller), power-sliding rear window with defogger, a rearview camera, dual-zone automatic climate control, an auto-dimming rearview mirror, remote ignition, leather upholstery, heated front seats, eight-way power front bucket seats (with power lumbar), driver memory settings, a 110-volt power point and an upgraded MyLink system with an 8-inch touchscreen.

Some of the extra standard features on the upper trims can be added to the lower trim levels as options. Other option highlights, depending on trim level, include 20-inch wheels, different axle ratios, a protective bedliner, a bed storage box, various tonneau covers, trailering mirrors, a sunroof, a Driver Alert package (includes front and rear parking sensors, lane-departure warning, forward collision alert and a safety alert driver seat), power-adjustable pedals, a telescoping steering column, a navigation system, a Bose audio system, ventilated front seats, a heated steering wheel and a rear-seat entertainment system.