![]() ![]() ![]() Our truck was equipped with the gasoline Vortec 8100 V8 and the Allison five-speed automatic. There are also four transmission offerings, depending on engine choice and model: an Allison five-speed automatic, a ZF six-speed manual, a GM Hydra-Matic 4L80-E four-speed automatic and a New Venture Gear five-speed manual. The Silverado 2500 HD is available with any one of three engines, a 6.6-liter Duramax diesel, an 8.1-liter gas-powered Vortec V8 and a 6.0-liter Vortec base-level V8. At the test track, the truck stopped from 60 mph in 142 feet. The combination of larger front rotors and larger brake pads (a 36 percent increase in pad surface) means a substantial increase in normal brake life. GM's Hydra-Boost system sends stopping force through twin-piston calipers, and now features dynamic rear proportioning, which helps to maximize the rear brakes' effectiveness. In the rear are semi-elliptical multi-leaf springs and gas shocks.įor the first time, four-wheel discs are employed on all heavy-duty Chevy and GMC pickups and ABS is also standard on all models. The front lower control arms are made of forged steel, while the uppers are stamped-and-welded, box-section pieces. The all-new chassis is designed to meet higher strength and durability limits, and the Silverado has a multi-section modular frame, with a rigid "hydro-formed" front section to improve front-end alignment and body fitment.Ī revamped torsion-bar front suspension is used on both two- and four-wheel-drive models, which Chevrolet says gives added durability to the two-wheel-drive trucks. ![]() The Crew Cabs offer more head-, shoulder- and hip-room than the previous generation, and all models also have longer, wider and deeper cargo boxes. Looking to overtake Ford in the heavy-duty pickup segment, GM's new trucks are offered in Regular Cab, four-door Extended Cab, a four-door Crew Cab (like our test truck) and Chassis Cab configurations. With that little bit of housekeeping out of the way, let's take a thorough look at this freshly redesigned truck. The GM heavy-duties we're examining here in the form of a Chevy Silverado LS 2500 HD crew cab are the other major players in this group.Īs is always the case with Chevy and GMC trucks and SUVs, everything we say here applies to either make of truck, the Chevy Silverado or the GMC Sierra. Ford's Super Duty F-series trucks were new in 1999 and Dodge's new Ram will be out soon. Furthermore, the heavy-duty three-quarter- and one-ton trucks make up a sizable portion of the sales pie. So, it's a no-brainer that this segment is a competitive one, and the full-size truck makers know this quite well. In fact, if you were to do the math, Ford's 800,000-plus yearly F-Series sales come to more than 60,000 units per month. For the past two decades, the Ford F-Series and Chevy Silverado/GMC Sierra have combined to sell well over a million trucks each year. Full-size General Motors and Ford pickups dominate auto-industry sales lists. ![]()
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