However, without any modifications, you're likely limited to tires in the 35-inch range. Going larger usually requires a lift kit and often fender modifications to prevent rubbing.
With a substantial lift kit (6 inches or more) and potentially fender modifications, you could potentially fit much larger tires, possibly up to 37 inches or even slightly larger, but even then, it's crucial to verify clearance and avoid potential damage to components.
Before purchasing any tires:
* Measure your current tire size: This will give you a baseline.
* Research lift kits: If you plan on going beyond 35 inches, you'll almost certainly need one. Specific lift kit recommendations are best found on forums dedicated to the 2003 Ford F-350 Super Duty.
* Consult a tire professional: They can advise on the largest size compatible with your truck's specifications and any modifications you have in mind. They can also factor in the load rating needed for your vehicle's intended use.
* Check your truck's owner's manual: This will provide the manufacturer's recommended tire sizes. Exceeding these sizes may impact your warranty.
Remember that larger tires change your speedometer and odometer readings, potentially impacting fuel economy and performance. It's also crucial to ensure the larger tires are appropriately rated for your truck's weight capacity. Improperly sized tires can severely compromise safety.
