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james, Auto Service Technician
Category: Chevy
Satisfied Customers: 440
Experience:  gm certified technician and federally licensed technician
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My truck came with a 255/75/R16 tire; will a 265/75/R16 fit

Customer Question

My 2002 Silverado (2wd) came stock with 255/75/R16 tires; will a 265/75/R16 tires fit without any problems? Will it cause the speedometer to be off or is the only difference the width?
Submitted: 9 years ago.
Category: Chevy
Expert:  Greg A replied 9 years ago.

HiCustomer Thank you for asking your question on Just Answer.

The first number in the tire numbers indicates the width of the tire at its widest part.

The last part of the number (which is the same on both numbers you gave) it the diameter of the wheel/tire. This is the only number that might cause a change in your speedometer.

So you will NOT have any change in your speedometer, and the tires should fit on your standard rims.

Reference Site

Take Care, Greg A.

Expert:  james replied 9 years ago.

Using an online tire size calculator this tire size change will only make a 1.901 miles per hour to slow difference in the speedometer and odometer . The tire sizes breakdown like this for the stock tire 255millameter wide at the tread the side wall is 75% the width of the tread and the rim diameter is 16inches / the replacement tire is 265 millameter wide at the tread the sidewall is 75% as tall as the tread is wide and the rim diameter is 16 inches/ Hope this helps if so please accept and thank you for using james