Wow, my suburban has 32"x15 and they look huge compared to these stock tires. - so are you saying my 3rd gen wheel well is designed for 31"+?

*can the mpg be corrected by changing final gear ratio to reflect stock gearing or is it rotational mass that is affecting mileage?

I found a great online calculator that calculates actual speed if no modifications made other than tire size: http://www.net-comber.com/tirecalc.html

Last edited by lynchknot; 10/05/05 04:49 AM.