Sierra heavy-duties are offered in a range of 2500HD (three-quarter-ton) and 3500HD (one-ton) models and are available in WT, SLE and SLT trim. The range of configurations – three cab styles, three cargo box styles and five wheelbase lengths – delivers tremendous choice. Some full-size truck manufacturers do not even offer three-quarter-ton or one-ton heavy-duty trucks. And among those that do, the 2008 Sierra HD pickups offer many segment-best capabilities, including 18,500-pound (8,392 kg) gross combined vehicle weight rating for vehicles with a gas V-8 and a 13,000-pound (5,897 kg) conventional trailer weight rating enabled by a larger-capacity trailer hitch platform. Maximum towing capacity is 16,700 pounds (7,575 kg), when equipped with a fifth-wheel hitch.
Changes to the Sierra 2500HD and 3500HD for '08 are minor and include standard XM Satellite Radio on all models, availability of a power-adjustable driver's seat on regular cab models with a bench seat and two new exterior colors: Dark Crimson Metallic and Sonoma Red Metallic.
Engine [Optional Engines]
Engine Configuration V
Displacement 6.00 L | 6000.4 cc.
Horsepower 353.00 HP @ 5400.00 RPM
Torque 373.00 Ft-Lbs @ 4400.00 RPM
HP to Weight Ratio 17.5 LB / HP
HP / Liter 58.8 BHP / Liter
Compression Ratio 9.6:1
Fuel Type Gasoline - Petrol
Ignition System Coil Near Plug
Final Drive 3.73
Dimensions [Optional BodyStyles]
Cargo Volume 75.50 cu. ft.
Towing Capacity 12100.001 lbs
Standard Payload 3637.001 lbs
Fuel Capacity 34.0 Gal
Seating Capacity 6
Length 258.701 in | 6571 mm.
Width 95.901 in | 2435.9 mm.
Height 76.001 in | 1930.4 mm.
Wheelbase 167.001 in | 4241.8 mm.
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