James Carter

On most stock trucks and SUVs, you can safely fit tires up to about 33 inches in overall diameter – or roughly one size larger than what came from the factory – without a lift kit, as long as the new tire stays within 3% of the original overall diameter and clears the wheel well … Read more

Can you safely run different size tires front and rear? Yes, only when the vehicle was designed that way from the factory (a staggered fitment). Otherwise, every tire must match. The two tires on the same axle must always match in size, and across all four corners the overall diameter should stay within roughly 3% … Read more

Yes, it is okay to mix two tire brands on the same axle when both tires match in size, tire type, tread depth, speed rating, and load index. Brand alone is less critical than these five specs aligning. On AWD and 4WD vehicles the rules tighten because the drivetrain is sensitive to even small differences … Read more

Putting the wrong size tire on your car affects almost every system on the vehicle, from the speedometer and odometer to the drivetrain, fuel economy, and braking performance. A tire that’s even one size different from the specification on your door jamb sticker can shift your speedometer by several mph, force your AWD differential to … Read more

Can you fit a slightly bigger tire on the same rim? Yes, you can fit a slightly bigger tire on the same rim, within two clear limits: stay up to about 20mm wider than your stock tire, and keep the new tire’s overall diameter within roughly 3 percent of the original. Go past those limits … Read more