Join Date: Jul 2007
Location: Winter Springs, Florida
Re: Tire size for 17X8 wheels....
I just went through this on My 70 Camaro,
The best thing to do is get on the tire manufacture web cite i.e. BF Goodrich, Toyo, etc. and pick a tire and check the sizes and spec for the tires you are looking at. The manufacture specs will give you diameter, tire width and the best rim width for each tire size. This helped me a lot so I could compare the factory tire diameter/width with the new tires/widths rims I had.
I end up putting on 245/45 on the 17x9 Cragars 5.5" backspace on the rear and 235/45 17 x 8 Cragars 4.5" backspace on the front. Closet thing to original diameter tire for my 70.