Biggest Tire Size for Toyota Tundra 2017 Without Lift

The Stock Tundra Setup

From the factory, most 2017 Toyota Tundra models (like the SR5, Limited, and Platinum) come with either 255/70R18 or 275/65R18 tires. These equate to roughly a 32-inch tire. Toyota designed the wheel wells to accommodate these perfectly, leaving just enough gap for full suspension articulation and steering lock.

Max Upgrade Size Without Lifting

If you are sticking to the factory wheels (which carry a +60mm offset), the absolute maximum tire size you can run without a lift kit is 275/70R18 or 285/65R18.

• The 275/70R18 brings your diameter up to just about 33.2 inches.
• The 285/65R18 gives you a slightly wider footprint at the cost of a tiny bit of height (32.6 inches).

When Does Rubbing Happen?

Rubbing essentially occurs when the tire connects with the inner fender liner or the frame when turning. On the 2017 Tundra, the most infamous point of contact is the body mount. If you attempt to push into the 295 width range or slap on a 34-inch tire on a standard suspension, you will rub the mud flaps and the cab mount immediately upon making a tight turn.

Trimming Considerations

If you desperately want to run a 295/70R18 without a lift, be prepared to do some minor surgery. You will likely need to:

1. Remove the front mud flaps.
2. Push the inner fender liner forward (often called the "fender mod").
3. Potentially execute a Cab Mount Chop (CMC).

Calculator Integration

Use our TireFitPro calculator to compare tire sizes and check if they will fit your vehicle without rubbing or speedometer issues. Instantly see how a 275/70R18 stacks up against your stock setup!