['ol Pinion head]

15x7 wheels were the optional size on 73 LeMans.
Just do a forum search on HM or HW rally II wheel & the same offset was used with std steel 15x7 wheels for '73.

[jerry455]

I had 15x8" snowflakes on my Can Am with 255 60 r15 tires all around and worked great. They fit the wheel wells perfect. Might be able to go wider in the rear. The wheel well is large.

[Pontiac Derek]

Hey thanks for all the responses you guys so right now it's got what I think are 14x7-in wheels there are just a old school cragar mag and then it's got a 225/60/14 front 245/60/14 rear, I would like to put 15x8 all the way around it either rally twos or if I could find honeycombs but these are on the small side to me especially in the front I'd like to fill out the wheel well better I really need to know on a 15 by an inch wheel what's the least amount of backspace I can run because I like the tire to be out close to the edge of the fenders as much as possible I don't really want to buy a set of wheels just to find out I guess I could get one of those tools they have that mount to your wheel hub and you can put it at different sizes to see what would fit, anyways thank you very much for all the comments!