I was wondering what the difference in width is between 245 70 15 and 235 70 15 on an 8 inch rim. I have a 64 Chevelle and the 245 are extremely close to the wheel well lip and was wondering how much room I would gain by going to 235s. I would prefer not to roll or trim the lip, but if I do not gain enough room , I will.
Thanks
Brett

235 to 245 is 10 mm difference. There are 25.4 mm to an inch, so the answer to your question is around .5".

Thanks.