Backspace

[tkz69camaro]

I sure could use some help with getting the backspace right on a 69 camaro. The front wheels will be 18x8 with 245/40/18 and back will be 18x9 with 275/40/18. Tires will be nitto 555. The car may be lowered 1" but no more than that. The measurements in the rear are 5 1/8" from hub to fender lip, 6 11/16" from hub to frame rail. If someone could tell me the width of the tire when it's mounted I think I could figure the backspace out or if someone is running this setup that would be great. Thanks for your help you can give me and thanks for your time.

[DriverzInc]

Give us a call, we'll be able to help you, its pretty cookie cutter...

[pragmatist]

Use this as a general guideline.

http://www.rimsntires.com/specs.jsp

[tandk22]

My hankook 275/40 18's have tread width of 9.4" and a select width (widest point of the side wall) of 10.9" on a 9.5" rim. On your 9" rim your tire should be a little less. Todd