A Guide to GMC Heavy Duty Truck Configurations


As your trusted GMC heavy duty dealers, the team at Peruzzi Buick GMC helps customers navigate the comprehensive range of GMC Sierra HD configurations. We’re exploring all the options available, including 2500 vs. 3500 models, engine options, and cab sizes, to help you build the truck of your dreams.


Gray GMC Sierra HD AT4X truck parked on pavement in front of a metal building.


GMC Sierra 2500 HD: Professional Grade Capability

The GMC Sierra 2500 HD delivers impressive capability for most heavy-duty applications. This truck offers conventional towing capacity up to 20,000 lbs when properly equipped, making it well-suited for large travel trailers and construction equipment transport. Its maximum payload capacity reaches over 4,000 lbs with the proper equipment, providing substantial cargo carrying ability for contractors and outdoor enthusiasts in the Fairless Hills area.

The GMC Sierra 2500 HD features reinforced frame and heavy-duty suspension components designed to handle demanding loads while maintaining ride comfort. Available in Regular Cab, Double Cab, and Crew Cab configurations, the GMC Sierra 2500 HD accommodates different passenger and cargo needs.

GMC Sierra 3500 HD: Maximum Strength Performance

The GMC Sierra 3500 HD represents the pinnacle of GMC heavy duty capability, designed for the most demanding commercial and recreational applications. This truck excels in fifth-wheel and gooseneck applications with maximum ratings reaching 36,000 lbs when properly equipped.

This new GMC truck is popular among commercial contractors, RV enthusiasts with large fifth-wheel trailers, and agricultural operations requiring maximum hauling strength. Single rear wheel models offer improved maneuverability while maintaining substantial capability. The reinforced chassis and heavy-duty suspension provide confident handling under maximum load conditions.

Engine and Configuration Options

Both GMC Sierra HD models share identical powertrain options. The standard 6.6-liter V8 gasoline engine produces 401 horsepower and 464 lb-ft of torque for reliable performance. The available Duramax 6.6-liter turbo-diesel V8 engine delivers 470 horsepower and 975 lb-ft of torque, unlocking maximum towing capacity ratings.

Both engines pair with advanced Allison® ten-speed automatic transmission, engineered specifically for heavy duty applications. Cab configurations include Regular Cab for maximum cargo space, Double Cab for occasional passengers, and Crew Cab for full family seating with multiple bed length options available across all configurations.

Choose Your Perfect GMC Heavy Duty Configuration

Eager to customize your truck? Visit Peruzzi Buick GMC to explore our complete inventory of GMC heavy duty trucks and discuss which configuration best serves your needs. Our team can set you up with a GMC financing plan to bring home your workhorse pickup today.