Big power, big load, large capacity and pulling.
General Motors is currently the leader in heavy pickups. GMC Sierra and Chevrolet Silverado heavy-duty trucks are more powerful and more comfortable than any heavy trucks in history. They ride more smoothly and feel better than the current heavy-duty trucks from Ford and Dodge.
Completely renovated and redesigned in 2001, GMC Sierra lines mechanically almost identical Chevy Silverado line. However, there are some key differences. Sierra more stylish. Delivered as a "professional class" truck GMCs offer more features, more technology, more luxury, and then Chevys.
These trucks can move mountains. GM said 3500 series had full power heftiest vehicle weight rating and the highest gross combined weight rating available.
Walkaround
GMC Sierra Leone more stylish than in the Chevy Silverado, and we feel more attractive. Sierra HD shares key design features of ordinary small model, but there are differences : Sierra HD is high, and so, for two inches. He also hoped to increase, and this in a broader direction. Its broad a fender flares and muscular bumper give it a GMC encourages professional class. In 2002, it took Serra Tailgate passes.
GMC centre port is chromed grille and sends a large number of air hood. One of the Wraparound composite headlamps give Serra looser, aerodynamic appearance. In general, the body smoother and more fluid than before.
Soon the new 2003 Sierra so bold design.
Interior Specifications
The front seats are comfortable and supportive. SLE is well equipped with convenience features and beautiful fabrics. SLT comes swathed in leather and felt luxurious, as increased Yukon XL.
Crew Cab offers Square rear seats are comfortable for two adults to three. Down folding rear seat reveals a large flat cargo area. This area is divine, whether hauling a large dog or do not want to be subjected to the elements or others. Places 60/40 split for maximum usefulness.
The new Sierra 2002 models of full-length feature specially designed consoles, from the dashboard of the back of the front seats. In the center console in front of the camera, providing a hidden storage of personal digital assistants, cellular telephones, and two auxiliary power points accuse them. It also provides record-keeping for small objects such as maps, gloves or CDs. It is oversized Big Gulp cupholder and second cupholder temperature than keep drinks hot or cold when the ignition is turned on. The centre console added seven quarts of electrical installations, provided that can keep drinks and food cold or warm. Cooler directly contradicts off the battery and provides food, even when off off. center console can be easily converted for hanging folders. Two outlets ions rear console useful for charging the battery for power. There are also rear storage offers two cubic feet of storage space for tools such as rotary hammers and saws. Small container is mounting and other small items. Console and storage sites can be blocked.
Driving impressions
We drove Sierra 3500 Crew Cab duallie for two weeks and it was a miracle of power, comfort, and payload capability. It was easy to move parts of the house from Maryland to Virginia, and a brief transition garage full of things around Williamsburg. It was clearly underwhelmed this small but very handy when mother-in-law to dinner.
Ride quality than the best of currently available duallies from Ford and Dodge. Handling is surprisingly good for such a big truck. It covers real estate quickly as Interstate or back on the winding roads. Hydroformed front frame gives him extraordinary toughness, which allowed GM engineers customize the suspension better for improving smooth progress and manageability. Front torsion bar suspensions of strength.
Four-wheel disc brakes stop the reduced distance and give the driver solid pedal opinion, significant improvements in GM's previous generation of trucks. Most front rotors, larger brake pads, linings enhanced stopping power and longer pad life. Dynamic rear proportioning reduces stopping distances of the front and rear brake errors tires with the best grip.
Base engine is Vortec 6000 6.0-litre V8 (366 cubic inches), which is 300 litres. With. , and 360 pounds feet of torque at 4,000 revolutions per minute. Introduced in 1999, it's designed for 200,000 miles lifetime of 10,000 miles an oil change intervals. Its aluminum cylinder head is similar to that of N. Corvette. It comes with a choice of five-speed manual power and GM 4L80-E four-speed electronically controlled automatic, which comes on the extended cab, and crew cab models. Four-speed automatic features Tow / Haul mode.
Big Vortec 8100 V8 provides 455 pounds-feet of maximum torque at 3200 revolutions per minute. Torque is that the forces that the truck from the line, and this 8.1-liter, 496 cubic-inch V8 glass in it. It generates 400 lbs.-ft. at 1600 revolutions per minute. Do not expect neck, I can speed up, though. Faster acceleration of work in tow in goal. And that very well. Introduced last year, a 8.1 litre V8 replaces GM's 7.4-litre V8. It has expanded opportunities, such as engine oil for the life and emergency evacuation mode. The gas engine to $ 850 USA version.
The new Duramax 6600 diesel is smooth, quiet and strong. He punched in a remarkable 520 lbs.-ft. torque only at 1800 revolutions per minute. GM Duramax diesel engine built in Moraine, Ohio, but was developed with Isuzu, one of the world's largest manufacturers of diesel engines. The new 6.6-liter Duramax improves fuel economy than the old 6.5-liter diesel GM replace him. Duramax is for 200,000 miles lifetime, according to GM engineers, and for ease of maintenance. Half of heavy trucks, cars are sold with diesel engines. Diesel adds U.S. 4810.
Duramax Vortec 8100, and offer a choice ZF six-speed manual or optional Allison 1000 five-speed automatic (1200). Both have close coupling ratio, which provides exceptional start to climb the hill and towing capacity and the economy. Their powerful components stronger than those typically found in a truck transmissions, providing strength and durability.
ZF six-speed manual easily moved and completely synchronized in all transfers of double cone synchronizers in the second and third. A convenient shift pattern allows the shift lever to be moved forward for reverse and back straight for first, making it easier to maneuver quickly in tight spaces. The second device works well for the take-off because of the pressure; First creeper gear.
As good as the six-speed manual is, the optional automatic five-speed Allison is one of the most impressive features of these trucks. We strongly recommend it for its response activities. Available for the Vortec 8100 Duramax engines and Allison designed to last 200,000 miles; GM engineers said it was "more deliberate", which is heavier duty than necessary. But it is also subtle and keeps in close contact with the driver, and engine with full electronic control. It adjusts the changes under driving style. Tow / Haul mode of the device is transferring more hunting and reduce heat. This transfer of feelings when a truck going down feelings when driver is applying the brakes and transmissions, reducing brake wear. This class braking feature; Only touch the brake pedal when the truck left the class. In practical terms, Allison transmission is designed to facilitate the authorities will take off (PTO) accessories. He Transmission crisply when the truck is coming to an end. Duramax and Allison combination does not come cheap, however.
GM said heavy pickups to maximize PEVTS for towing and higher GCVW to pull in business. Payloads range from 3,321 pounds for the 2500HD Crew Cab four-wheel drive for 5753 to 3500 pounds for normal electric drive wheels at 2. Two-wheel drive models and small taxis offer greater payload. Heavy-duty trailering version adds adapter, which allows for four and seven to trailer-use connection.
Both Vortec 8100 gas and diesel Duramax 6600 to tow trailers up to 12,000 pounds. We removed a 7000-pound trailer (two horses at the same time axis bags full value) in 2500HD with the Duramax diesel and Allison transmission. Attached through (Rees) Class III loading smoothly rig was stable, easy to manage. As the fifth wheel settings, trailering growth potential astounding 15,800 pounds maximum.
The 4-wheel drive trucks to shift on-the-fly transfer case. Using floor mounted Shifter, he moved immediately to the 4-wheel drive at 40 miles per hour.
"Heavy duty" is a good description 2500HD and 3500 trucks, all their equipment beefier than in the 1500 and 2500 light pickups. Front tow hooks are standard.
Composition
Heavy Sierra pickups as a whole is divided into a series of HD 2500 and 3500 series.
To understand the data, it helps to speak the language : "Half-ton", "car" and "one ton" become obsolete because of modern freight much more than 1000-2000 pounds. However, we still tend to use those terms. Sierra 1500 series are the so-called half tons trucks. Curiously, it is possible misconception GMC sells small-truck series in 2500, which we refer to as half of the truck, because it is based on the 1500 series. (See separate review newcartestdrive.com Serra 1500 and 2500 light trucks.)
2500HD pickups are what we usually call the car trucks. All GMC 2500HD trucks with a rear wheel. Their suspension and chassis heavier than light duty design series 2500 models; There are two different 2500HD raised in the hood.
3500-series trucks with dual rear wheels; these so-called one-ton trucks are called "duallies."
Conventional electric extended cab and crew cab body is 6.5 feet shorter bed or 8 feet long beds. Wheelbases of 133, 143.5, 153.0, 157.5 and 167 cm in length at the 2500 HD pickups; Wheelbases are available in 133, 157.5, 161.5 and 167.5 cm in 3500 duallies.
Three trim levels are offered : SL, well-equipped SLE and SLT skin.
Engine choices : 6.0-liter Vortec V8, 8.1-liter Vortec V8, 6.6-liter Duramax Turbo Diesel.
No less important is the transfer of choices : five-speed manual or four speed automatic for the Vortec 6.0-liter; Six-speed manual or an exciting new Allison five-speed automatic for the Vortec 8100 or Duramax 6600. And, of course, two-wheel and four-wheel drive are available.
In 2002, the GMC Sierra added two new Professional models; They sent in an expanded cab short box trucks and are available in 2-wheel drive and 4-wheel drive.
