Backspace

[angel iron]

I have a 74 Firebird will a 18x9.5 rim with a 6" backspace fit on the rear?

[gotyorgoat]

When I was getting ready to buy wheels I searched forever and it seemed that everyone had something different. I finally just measured for myself rather than rolling the dice based on someone elses measurements. Remember to account for the width of the tire to include any bulge in the sidewall. Use a framing square on the face of the wheel mounting surface and measure your available front space and back space on both sides. A 9.5" rim w/6" bs is 10.5" outside to outside and 6" from hub to the outside of the back lip.