Can you replace 245 75 r16 tire with 235 75 r16?

Yes, you can replace a 245/75R16 tire with a 235/75R16 tire. The first number (245 or 235) represents the width of the tire in millimeters, so the 235 tire will be slightly narrower. The second number (75) represents the aspect ratio, indicating the height of the tire sidewall as a percentage of the width. The third number (16) represents the diameter of the wheel in inches, which is the same for both tires. Overall, the 235/75R16 tire will be slightly narrower but compatible with the 245/75R16 tire size.