With a set of 17x9's you'd need a minimum of 5.6" of backspace to keep a set of 255/45/17's off the fender. Minimum. Any less than that and it would interfere on the fender side.
Cragar finally emailed me back about custom backspacing. Talk about slow customer service. The good news though is that it looks like if I wanted a set of those wheels I could make them work.
"Hi Tate,
17x9 is the widest we offer. But, we can do special backsides. The min and max are below.
17x8 min 4 1/4" & Max 5"
17x9 min 4 7/5" & Max 5 7/8"
Thank You for contacting Cragar customer care."
So should I shoot for 5.75" of backspacing on all four wheels running a 17 X9 and 255/45r17 all the way around?
I'm going to be running the Mopar circle track springs in the stock location in the rear with a B-body 8.75