18 x9.5 on a 68 Camaro

[whytry]

My Camaro, nothing else changed except for lowering the rear of the car 3"... I want to run a 18x9.5 in rear with a 275/40/18 or if by chance even a taller tire in rear. Not much but a little. I currently have 255/45/18 on a 18x8. On this board I read I can fit a 275/40/18 on a 9.5 rim on a 68 Camaro. On another website I read I can only do this if I have a 69 Camaro or modify the rear of my car. I have already rolled the fenderwells so I am preparing to do everything else. I want to run as wide as I can without minitubbing my car. Cost is an issue.... I am hoping I find out what is needed to do this and does anybody have pics of sometbody who has done this already. I know alot of you guys minitub.... I really want to get a 9.5 back there. What do I need to do?

[colt zantop]

Im gonna be running a 275-35-18 on the rear of my 68 and I have nothing modified for it...not even rolled fender lips. I had a 275-40-17 on there before without rubbing. but mine isnt lowered 3 inches in the rear.........