However, you can use a range of sizes larger or smaller than the original, but it's crucial to stay within safe parameters. Going too far outside the recommended size can cause problems including:
* Rubbing: Larger tires may rub against the fenders, suspension components, or steering components.
* Speedometer Inaccuracy: Larger tires will make your speedometer read slower than your actual speed, while smaller tires will make it read faster.
* Odometer Inaccuracy: Similar to the speedometer, your odometer will be affected.
* Gear Ratio Changes: Larger tires effectively lower your gear ratios, potentially affecting acceleration and fuel economy.
* Handling Issues: Significant changes in tire size can affect your truck's handling and stability.
To determine what size tires you can safely use, you'll need to consider:
* Original Tire Size: This is your starting point.
* Rim Size: The diameter of your wheels. This limits your tire size choices.
* Backspacing: How far the wheel's mounting surface is inset from the outer lip. This affects clearance.
* Lift Kit (if installed): A lift kit increases ground clearance and allows for larger tires.
* Wheel Well Clearance: Physically check for clearance with your chosen tire size.
In short: There's no single answer. You MUST determine your original tire size and then research compatible sizes based on your specific truck's configuration and any modifications you've made. Online forums dedicated to Chevy C-10s (like classic Chevy forums) are excellent resources for finding information on tire size upgrades from other owners with similar setups.
