United Tire and Service News

Figuring out which tires are right for your truck can be tricky. If you're thinking about changing or replacing your truck tires, you'll want to be sure you're choosing the right size to avoid any issues. While choosing the right size might seem simple, here are a few things you should consider before you start. 

Finding Your Truck’s Recommended Tire Size

Before you can buy new tires for your truck, you need to know the correct size. Here’s how to find the recommended tire size for your truck:

Check the Tire’s Sidewall

If your truck is still equipped with its original tires, the simplest way to find the factory-recommended tire size is by examining the sidewall of the tire. You’ll see a number sequence that might look like “35x12.50R20” for flotation sizes or “265/75R16” for metric sizes. These numbers give you all the details about the size and type of tire your truck was originally fitted with.

Look for Informational Stickers on Your Truck

If you're unsure whether your truck has its factory tires, you can find tire size information on various stickers located around the vehicle. Typically, these stickers are found in places such as the driver’s door jamb, inside the fuel door, or under the hood. They provide crucial details like your truck’s VIN, gross vehicle weight rating (GVWR), and importantly, the factory tire size(s).

Consult the Owner’s Manual

For a comprehensive guide to all the tire sizes that might come with different versions of your model, check the owner’s manual. Manufacturers usually include a tire size chart that covers various trim levels, cab configurations, and other specifications. This chart is an invaluable resource if you’re considering tire sizes that could fit other configurations of your model besides your own, allowing for greater flexibility in tire choice based on your needs.

Understanding Tire Size Classifications

Once you know where to find your truck's tire size, it’s important to understand what these numbers and letters mean. Here’s a breakdown of tire size classifications:

Example Tire Code: P275/55R20

• Type of Tire (P): The "P" stands for passenger vehicle tire. This indicates the tire is designed for passenger vehicles, which includes most trucks. Other designations include "LT" for light truck tires, which are built for heavier loads and off-road conditions.

• Tire Width (275): This number represents the width of the tire in millimeters. A wider tire can provide better traction and stability.

• Aspect Ratio (55): This number is a percentage that describes the height of the tire's sidewall relative to its width. A lower ratio generally means a wider, sportier tire with better handling.

• Construction (R): The "R" stands for radial, which refers to the tire’s internal construction. Radial tires are the most common type used today, known for their durability and performance.

• Wheel Diameter (20): This number tells you the size of the wheel that the tire is intended to fit, measured in inches. It’s crucial that this number matches the wheel rim size on your truck.

Exploring Larger Tire Options for Your Truck

When considering larger tires for your truck, the "3% rule" is a practical guideline if you're using stock suspension—this suggests that the largest safe upgrade is 3% taller and wider than factory equipment to avoid any rubbing against the body or suspension components. However, for those looking to install significantly larger tires, modifying your suspension with a leveling or lift kit can increase fender well clearance, allowing for larger tires without interference. It's advisable to measure from the tire's edge to nearby components with the wheels turned to full lock to confirm fit.

Ready to Upgrade Your Truck Tires?

Choosing the right tires for your truck isn't just about enhancing its appearance—it's about ensuring safety, optimizing performance, and maintaining the integrity of your vehicle's handling characteristics. Whether you're sticking to the manufacturer's recommendations or opting for a larger set with modifications, it's vital to understand the implications of your choice on your truck’s overall functionality.

If you’re still unsure about what size or type of tires are best for your truck, or if you need help with installation, don’t hesitate to reach out to our team. Contact your local United Tire for guidance or explore tire options by visiting our website. We're here to help you find the perfect tires that match your truck’s needs.

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