Biggest Tires on a Stock & Leveled Silverado 1500: Clearance & Fender Mud Flap Guide
Complete body clearance and suspension fitment specs for the Chevy Silverado 1500 & GMC Sierra 1500 (K2XX (2014–2018) & T1XX (2019–2024+)). Find the absolute maximum tire size you can run stock, with a 2-inch leveling kit, or a 4–6 inch lift, and how to avoid front bumper, frame, and fender rubbing.
Compare top-rated models (BFGoodrich KO2/KO3, Falken Wildpeak A/T4W, Goodyear Wrangler) with real reviews.
Eliminate factory nose rake in 2 hours to clear larger 33"–35" tires without suspension cutting.
Push wheels out 1.25" to 1.5" to clear the upper control arms (UCAs) and frame on stock offset rims.
Tire Size by Suspension Height
Exact tire diameter limits, recommended sizes, and rubbing clearance status.
Stock Suspension (No Lift)
2.0" to 2.5" Leveling Kit
4.0" to 6.0" Suspension Lift
Critical Rubbing Points & How to Fix Them
Specific areas where oversized tires rub on the Chevy Silverado 1500 & GMC Sierra 1500 and proven solutions.
Squared-Off Fender Arch Design
Unlike Ford and Ram which feature round wheel openings, GM trucks have squared-off fender arches. Wide tires with negative offset wheels will hit the lower front and rear corners of the fender opening during turns.
Front Mud Flap Bracket (Rear of Front Wheel)
The steel mounting bracket for the OEM front mud flap sits directly in the path of 33.5"+ tires when turning.
Wheel Offset & Backspacing Advice
Why offset matters as much as tire diameter.
Stay between 0mm and +18mm offset on a 9-inch wide wheel. Extreme negative offsets (-24mm or -44mm) guarantee severe fender rubbing on Silverado squared arches.
Frequently Asked Questions: Chevy Silverado 1500 & GMC Sierra 1500 Tire Fitment
What is the biggest tire you can fit on a stock Silverado 1500?▼
A standard Silverado 1500 can fit a 33.0-inch tire stock (such as 275/60R20 or 275/65R18). If you have a Trail Boss or AT4 with the factory 2-inch lift, you can run up to a 33.5-inch tire (such as 275/70R18) with zero rubbing.
Can I fit 35-inch tires on a leveled Silverado 1500?▼
A true 35x12.50 will rub the rear mud flap bracket and front liner on a leveled Silverado. However, a narrow 34.5" tire (like 285/65R20 or 275/65R20) on factory wheels will clear with minor plastic trimming.