Another scenario which I didn't see on the charts:

15x7 4.25" bs w/ 225/55or60-15 with almost* a 1" drop up front and stock fenders. Any ideas?

 

Interesting question, M-plus OEM style arms are not concourse arms, then again someone putting 17s on their car also prob isn't doing anything concourse.

 

and as usual the 71-73's are left out again. I was hoping the chart would have something for me on there, oh well.

 

The charts I put together are forum member driven and rely on people who own the bug body stangs to give me information on those cars....and not alot of people shared any info. But there is some (7-8 or I think )

http://www.dodgestang.com/emAlbum/al...de%2071-73.pdf

 

Hmmm...I ordered the 3 bolt concourse arms from Laurel Moutnain because they said the tip of the arm is in a bit farther and allows for better wheel clearance. If you can fit 4.75" bs on a 67/8 with stock 4 bolt arms, then I wonder if you could squeeze a 5" bs with the 3 bolt concourse arms. Regardless I wanted the extra clearance, since my Wilwood hubs put the flange about .75" farther out. A 5.5" bs on those comes out to around 4.75" actual vs stock, and the arm gives that extra "oops" room.