Chevrolet Silverado Heavy Duty Headquarters
Dave Smith Motors: expertise for the job-site and anywhere else your heavy-duty needs take you. Explore our Silverado 2500 HD and 3500 HD inventory built for real hauling, real payload, and real work.
Shop Silverado HD InventoryChevrolet Silverado HD: Performance Specifications
Choose the 6.6L Gas V8 or the 6.6L Duramax® Turbo-Diesel paired with the Allison® 10-speed automatic. Important: Max ratings vary by configuration and equipment. Some max tow figures are based on gooseneck/5th-wheel setups, while conventional (bumper-pull) towing is lower.
| Silverado HD Model | Engine | Transmission | Max Towing | Max Payload |
|---|---|---|---|---|
| Silverado 2500 HD Diesel | 6.6L Duramax® Turbo-Diesel | Allison® 10-Speed Auto | Up to 20,000 lbs | Up to 4,101 lbs |
| Silverado 2500 HD Gas | 6.6L Gas V8 | Allison® 10-Speed Auto | Up to 17,400 lbs | Up to 3,731 lbs |
| Silverado 3500 HD (SRW) | 6.6L Duramax® Diesel | Allison® 10-Speed Auto | Up to 22,500 lbs | Up to 4,593 lbs |
| Silverado 3500 HD (DRW) | 6.6L Duramax® Diesel | Allison® 10-Speed Auto | Up to 36,000 lbs | Up to 7,442 lbs |
| Silverado 3500 HD Work Truck (WT) | 6.6L Gas V8 | Allison® 10-Speed Auto | Up to 19,090 lbs | Varies |
Built To Work: Silverado HD Trim Levels
From Work Truck value to ZR2 capability and High Country comfort.
Work Truck (WT)
The Essential Tool
- Durabed cargo box
- Touchscreen infotainment (size varies)
- Rear vision camera
- Easy-clean interior options
Custom
Rugged Style
- Unique exterior styling
- Convenience features (trim dependent)
- Cloth seating surfaces
- Popular fleet + personal build
LT & LTZ
Balanced Performance
- Large center display (trim dependent)
- Digital driver display (trim dependent)
- Trailering tech options
- Leather options (trim dependent)
ZR2
Off-Road Authority
- Off-road suspension components
- Factory off-road enhancements
- Aggressive tire package (varies)
- Distinct ZR2 styling
High Country
Executive Luxury
- Premium interior materials
- Heated + ventilated seat options
- Bose® audio options
- Power tailgate options
Bobby's Accessories Team: Silverado HD Customization
Turn a stock Silverado into a specialized tool for your ranch, fleet, or construction business. Our onsite team can help coordinate bed setups, towing equipment, protection, and work-ready installs.
- Work bed & flatbed installs (availability varies)
- Bedliners and protection packages
- Gooseneck & 5th-wheel equipment (truck-dependent)
- Suspension and wheel/tire upgrades
Tip: mention “Accessories / Upfit” so we route you to the right team faster.
Chevrolet Silverado HD FAQs
Is the Allison 10-speed available on both engines?
Silverado HD models pair the 6.6L Gas V8 and the 6.6L Duramax® Turbo-Diesel with an available 10-speed automatic, depending on model year and configuration.
What is the Multi-Flex Tailgate?
The available Multi-Flex Tailgate offers multiple configurations designed to improve loading, stepping, and bed access. Availability varies by trim and equipment.
What is the max towing for a Silverado 3500 HD dually?
When properly equipped, a Silverado 3500 HD DRW with the Duramax® can tow up to 36,000 lbs, depending on configuration and equipment.
Do you stock 4WD Silverado HD trucks?
Yes — we stock a strong selection of 4x4 builds, including popular off-road packages. If you want a work truck that can handle snow, job sites, and weekend towing, we can match you to the right configuration.
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