Join Date: Oct 2018
Location: Baldwinsville, NY
Re: HELP identify 1968 wheel and tire size
You're running the same tires I have on my 68 - 235/45R17s -mine are on 17x9 rims. Any tires larger than 235s will run into clearance problems with the original offset. You can simply measure them but the backspace they list doesn't look right. A 0 offset should center the wheel on the hub, so an 8 inch rim should have 4 inch backspace, not 4.5". That's the issue I have with mine since I swapped out my original 10 bolt and lowered my car. My 0 offset rims pushed the rear tires out too far. I'm switching to a positive offset of 25-30mm. That will take up most of the inside clearance I have and give me room between the tire and fender. The 18x12 rims you suggested won't fit without installing mini-tubs. The 245s might fit up front but it will depend on how low the car sits and the offset you're using. Check tirerack.com - they might ship internationally, but I would expect it will be expensive regardless of who you find.