The OEM 275/65/18 Continental tires on my F250 are well worn at 33k miles. I have been debating up going with a taller and/or wider tire to fill the wheel wells a bit more. Much of the info I find o...
You are talking maybe a half inch over all Siam difference. Your 3.73 might now be a 3.6-3.65.....3.55 at tallest. A 2" inch taller tire would put you at a 3.42 effective ratio. Your rim will not matter, as both tire sizes are 275mms wide. Only difference is that sidewall height. Marty