2021 Gmc Sierra 2500HD in Chattanooga, TN - $55,395

With its broadest ever heavy-duty truck line-up ever, GMC unveiled the current Sierra heavy-duty pickup truck at the 2010 Chicago Auto Show. Designers and engineers left almost no bolt unturned during the comprehensive redesign of the trucks. Longer wheelbases and wider front/rear tracks enhance the ride and handling characteristics of the Sierra 2500HD and 3500HD, giving them a greater feeling of smoothness and control.

Offered in 2WD and 4WD Work Truck, SLE and SLT models and in single- and dual-rear-wheel configurations, GMC shows that it is ready for almost anything. Outside, the 2014 Sierra 2500HD and 3500HD models are distinguished by a power dome-style hood with a louvered design, as well as a full-width chrome steel front bumper. A lineup of 17-, 18- and 20-inch wheel/tire combinations is featured, too (20-inch polished forged aluminum wheels are available on 2500HD).

Standard power for the Sierra HD is generated by the venerable Vortec 6.0L V8 engine. Torque is communicated through the wheels by a strengthened version of the Hydra-Matic 6L90 six-speed automatic transmission. The available Duramax 6.6L V-8 direct-injection diesel engine is joined to a robust Allison 1000 six-speed automatic transmission.

The 2014 GMC Sierra HD rides on a rigid frame which includes 11 fully boxed frame assemblies. The frames have use high-strength steel for greater durability, higher towing capacity and improved ride and handling; the front sections are hydroformed. The bending and beaming stiffness of the frames is increased 92 percent and 20 percent over the model it replaced, with the fully boxed sections enhancing torsional stiffness by a factor of five. Also, larger engine and transmission mounts, coupled with a 125-percent-stiffer front frame structure, provide greater vibration control, while hydraulic body mounts are incorporated under the cab section on extended and crew cab models for a more isolated feel inside.

Dimensions & specifications

2500HD Regular Cab/long box
Wheelbase: 133.6; overall length: 225.0; width: 80.0; height: 77.5
2500HD Extended Cab/standard box
Wheelbase: 144.1; overall length: 230.6; width: 80.0; height: 77.8
2500HD Extended Cab/long box
Wheelbase: 158.1; overall length: 249.5; width: 80.0; height: 77.6
2500HD Crew Cab/standard box
Wheelbase: 153.7; overall length: 240.1; width: 80.0; height: 78.3
2500HD Crew Cab/long box
Wheelbase: 167.7; overall length: 259.0; width: 80.0; height: 78.0

3500HD Regular Cab/long box
Wheelbase: 133.6; overall length: 225.0; width: 80.0 (SRW), 95.9 (DRW); height: 77.3
3500HD Extended Cab/long box
Wheelbase: 158.1; overall length: 249.5; width: 80.0 (SRW), 95.9 (DRW); height: 77.4
3500HD Crew Cab/standard box
Wheelbase: 153.7; overall length: 249.5; width: 80.0; height: 77.4
3500HD Crew Cab/long box
Wheelbase: 167.7; overall length: 259.0; width: 80.0 (SRW), 95.9 (DRW) height: 77.8

Engine: Vortec 6.0L V8 – 360 hp at 5,400 rpm and 380 lbs-ft of torque at 4,200 rpm; Duramax 6.6L V8 direct injection diesel – 397 hp at 3,000 rpm and 765 lbs-ft of torque at 1,600 rpm.
Transmission: Hydra-Matic 6L90 six-speed automatic; Allison 1000 six-speed automatic.
Payload capacity: 4,212 lbs (2500HD); 6,876 lbs (3500HD)
Towing capacity: 17,500 lbs (2500 HD); 22,800 lbs (3500HD)

Safety features
Dual front airbags, four-wheel disc brakes with anti-lock, cruise grade braking, powertrain grade braking, traction control, StabiliTrak vehicle stability control with Proactive roll avoidance, OnStar communications system, tire pressure monitoring system, daytime running lights, automatic headlamps, front recovery hooks, and battery rundown protection.
Optional safety features include front-seat mounted side-impact airbags, dual head curtain side-impact airbags, fog lamps, remote vehicle starter system, Bluetooth hands-free phone system, adjustable pedals, universal home remote, rear parking assist, rear vision camera, navigation system, and full-size spare tire.

Warranty
Basic: 3-year/36,000 mile Bumper-to-bumper
Powertrain: 5-year/100,000 mile
Corrosion: 6-year/100,000 mile
Roadside Assistance: 5-year/100,000 mile 24-hour

Pricing
The base Manufacturers Suggested Retail Price (MSRP) for the 2014 GMC Sierra HD pickup truck starts from $31,310 for the 2500HD upto $49,695 for the 3500HD SLT 4WD model. Destination charges add $1,095.