2020 Chevrolet Silverado 3500HD Towing Capacity & Payload

When properly equipped, the 2020 Chevrolet Silverado 3500HD can tow up to a massive 35,500 pounds with a gooseneck hitch and carry a maximum payload of up to 7,442 pounds. Fully redesigned for the 2020 model year, the Silverado 3500HD offers incredible capability, adhering to the strict SAE J2807 towing standards to give buyers confidence that these heavy-duty ratings translate directly to real-world performance. Whether you are hauling massive construction equipment, a multi-horse trailer, or a luxury fifth-wheel camper, the 3500HD is built for the absolute heaviest tasks.

Quick answer: 2020 Chevrolet Silverado 3500HD Towing Specs

• Max Tow Capacity: Up to 35,500 lbs (Gooseneck/5th-Wheel, Reg Cab, DRW, 2WD, Diesel) / 20,000 lbs (Conventional)
• Max Payload: Up to 7,442 lbs (Reg Cab, DRW, 2WD, Gas)
• GVWR (Gross Vehicle Weight Rating): 10,750 lbs to 14,000 lbs
• GCWR (Gross Combined Weight Rating): 24,000 lbs to 43,500 lbs
• Curb Weight: 6,558 lbs to 8,242 lbs (depending on cab, bed, engine, and DRW/SRW configuration)
• Hitch Class: Class V receiver standard on all models (up to 2,000 lbs tongue weight capacity for conventional towing)

Note: Always verify your specific truck's capabilities by checking the Tire and Loading Information label and the Trailering Information label located on the driver's side door jamb.

Tow ratings by engine & trim

The 2020 Silverado 3500HD is available in Single Rear Wheel (SRW) and Dual Rear Wheel (DRW) setups. Towing capacity varies wildly based on cab size, drivetrain, rear-wheel setup, and engine choice. Below is a representative table of maximum ratings (focusing on optimal configurations).

Tow package contents

Chevrolet equips the 2020 Silverado 3500HD with heavy-duty trailering equipment standard across the board, making it ready to tow right off the lot. Available advanced towing tech takes this even further.

• Standard Trailering Package: Includes a 2.5-inch Class V receiver hitch with a 2-inch insert, 7-pin and 4-pin connectors, Hitch Guidance, and Hitch View camera.
• Integrated Trailer Brake Controller: Standard on most trims (and optional on WT), seamlessly tied into the truck's ABS system.
• Cooling Systems: External engine oil cooler and auxiliary external transmission oil cooler are standard, keeping temperatures in check on steep grades.
• Advanced Trailering System: Available on higher trims (LTZ, High Country) or as a package, featuring an In-Vehicle Trailering App, trailer tire pressure/temperature monitoring, and up to 15 unique camera views (including a "transparent trailer" view).
• Trailer Sway Control & Hill Start Assist: Standard software features integrated with the StabiliTrak system.

5th-wheel & gooseneck towing

To achieve the headline-grabbing 35,500-pound maximum towing capacity, you must use a gooseneck hitch with the Regular Cab, Dual Rear Wheel, 2WD, Duramax diesel configuration.

Chevrolet makes outfitting your truck for these massive loads simple with the Gooseneck/5th Wheel Prep Package. This package installs the hitch platform right into the truck's frame at the factory, leaving just the capped holes in the bed floor. It also adds a bed-mounted 7-pin trailer harness, meaning you don't have to drape cables over the tailgate. If you plan to tow over 20,000 lbs, you must use a 5th-wheel or gooseneck hitch.

Weight distribution & WDH requirements

Unlike lighter-duty half-ton trucks that require a Weight Distribution Hitch (WDH) for trailers over 5,000 lbs, the 2020 Silverado 3500HD's heavy-duty suspension and massive frame allow for high-capacity conventional towing without a WDH in many scenarios.

However, using a WDH is still highly recommended for conventional trailers exceeding 10,000 lbs to ensure optimal steering control, headlight aim, and braking performance. Always check the specific weight limits stamped on your truck's hitch receiver, as some setups cap conventional tongue weight at 2,000 lbs.

Real-world towing tips for this vehicle

• Exhaust Braking: If you have the 6.6L Duramax Diesel, make sure to engage the factory exhaust brake system when towing heavy loads down steep grades. It saves your service brakes and provides immense stopping confidence.
• Tow/Haul Mode: Always use Tow/Haul mode when towing. It adjusts transmission shift points to reduce hunting, keeps the engine in its optimal power band, and utilizes engine braking more aggressively.
• Tire Pressures: Dual Rear Wheel (DRW) setups require careful tire pressure monitoring. Ensure your inner and outer dually tires are inflated to the specs listed on the door jamb sticker for heavily loaded scenarios.
• Watch Your Payload: Keep in mind that gooseneck and 5th-wheel pin weights (typically 15-25% of the trailer weight) count directly against your payload capacity. You will often run out of payload before you run out of towing capacity.

Common towing-related issues

• DEF Consumption (Diesel Models): When towing heavy loads at highway speeds, the 6.6L Duramax will consume Diesel Exhaust Fluid (DEF) much faster than during unladen city driving. Always carry a spare box of DEF on long towing trips.
• Allison 10-Speed Transmission Software: Early 2020 models with the new 10-speed Allison-branded automatic occasionally experienced harsh shifting when loaded. Ensure your truck has the latest Transmission Control Module (TCM) software updates applied by the dealer.
• Camera Cable Corrosion: The advanced camera systems (like the accessory trailer camera) have connections located at the rear bumper. These can become corroded from road salt and grime, causing camera feed failures. Use dielectric grease on the connections.

Need help maintaining your heavy-duty truck or diagnosing a towing issue? Find a trusted shop on Repairius.