HELP! Chassisworks subframe.Rim questions

[turboapex]

Can i use 18x9 rims with this subframe?if so what backspacing & tire size?(1969 camaro)

[FreddieCougar]

Wheel width is secondary to tire width. You can use up to an 11 inch section width and 5 inch backspacing.
We have used as large as a 275/35-18 on our sub. Hope that helps.
Tim