2025 Chevrolet Silverado 3500HD Tire Size & Pressure Specs

As an ASE-certified master technician, I know that getting the right tires and air pressure on a heavy-duty truck isn’t just about comfort—it’s critical for safety, towing capacity, and vehicle longevity. If you are replacing the rubber on a 2025 Chevrolet Silverado 3500HD, whether it’s a Single Rear Wheel (SRW) or Dual Rear Wheel (DRW) configuration, this guide covers everything you need to know to get the job done right.

Quick answer

• OEM tire size: LT275/70R18 (Standard SRW) / LT235/80R17 (Standard DRW) / LT275/65R20 (Optional SRW)
• Recommended cold tire pressure: 60 PSI front / 80 PSI rear (SRW) or 65 PSI front / 65 PSI rear (DRW) — Always verify with your specific door placard.
• Bolt pattern: 8x180 mm
• Wheel size: 17x6.5 (DRW), 18x8.0 (SRW), or 20x8.5 (SRW)
• Load index/speed rating: Load Range E (10-ply rated) / 125/122R or 120/117R
• Spare tire size: Full-size matching LT spare
• TPMS frequency: 433 MHz

Tire sizes by trim

The 2025 Silverado 3500HD is offered in multiple trims, ranging from the bare-bones Work Truck (WT) to the luxurious High Country. Keep in mind that DRW (dually) models have specific 17-inch fitments.

Recommended replacement tires

When you are putting down massive torque from the 6.6L Duramax or gas V8, you need heavy-duty, Load Range E tires. Here are my top recommendations across different price and performance categories:

• Michelin Defender LTX M/S2 (Premium): The absolute gold standard for highway cruising, towing stability, and tread life. Extremely quiet and long-lasting.
• BFGoodrich All-Terrain T/A KO3 (Mid-to-Premium): Excellent choice for SRW trucks that see frequent job sites, dirt roads, or off-road conditions. Features a tough sidewall and the 3-Peak Mountain Snowflake rating.
• Falken Wildpeak A/T4W (Mid-Range): A great balance of highway comfort and off-road capability, handling heavy loads with ease and providing fantastic wet weather traction.
• Firestone Transforce HT2 (Budget/Commercial): A solid, no-nonsense commercial highway tire often used as original equipment. Good for fleets that churn through miles.

When to inflate to max load psi

For a 3500HD, tire pressure management is directly tied to payload and towing. The driver-side door jamb placard indicates the recommended cold tire pressure for the maximum Gross Vehicle Weight Rating (GVWR). For most SRW 3500HDs, this is 80 PSI in the rear and 60 PSI in the front.

You should inflate your rear tires to this maximum placard pressure (80 PSI) when you are hauling a heavy slide-in camper, towing a heavy fifth-wheel or gooseneck trailer, or loading the bed to its maximum payload capacity. Running max pressure reduces sidewall flex, lowers tire operating temperatures, and prevents dangerous blowouts. When the truck is completely empty, some drivers choose to drop the rear tire pressure slightly (e.g., to 65-70 PSI) to soften the ride and prevent center-tread wear, provided the TPMS does not trigger an alert. Always return to max PSI before loading.

Lug nut torque & pattern

The 2025 Chevrolet Silverado 3500HD utilizes a robust heavy-duty hub.

• Bolt Pattern: 8x180 mm (Note: This is different from older pre-2011 GM HD trucks which used 8x165.1).
• Lug Nut Torque: 140 lb-ft.
• Tightening Procedure: Always use a calibrated torque wrench and tighten the lug nuts in a star/cross pattern to ensure even seating of the wheel against the hub. For DRW models, ensure the inner and outer wheels are properly aligned on the locating pins before torquing. Retorque after 50-100 miles of driving.

Common tire issues for this vehicle

1. Cupping and Edge Wear on Front Tires: The massive weight of the Duramax diesel engine puts a lot of stress on the independent front suspension. If shocks begin to wear or the alignment is slightly out of spec (especially toe or camber), the front tires will cup rapidly. Rotate tires every 5,000 to 7,500 miles.
2. Inner Dual Tire Neglect (DRW): The inner tire on dually models is notoriously difficult to check for air pressure. Underinflation of the inner dual will force the outer dual to carry all the weight, leading to catastrophic blowouts of both tires under load. Invest in valve stem extensions and a dual-head pressure gauge.
3. TPMS Sensor Failure: The heavy-duty 433 MHz sensors have a lifespan of about 5-7 years. Because these trucks operate at high pressures (up to 80 PSI), internal moisture from cheap air compressors can sometimes corrode the sensors prematurely.

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