69 Cuda Restoration

Great looking car! Would you mind sharing the rear tire size and the rear wheel width and backspacing? Also if you have any modifications to the spring hangers or wheel lips to make them fit? I have a 69 fastback also and trying to decide how wide I can go on tires and rims. Thanks for any info and congratulations on your beautiful Barracuda!

17x9.5 with 5.5 bs low pad height, 255 45 17 tires in the rear. Factory a body rear with bbp axles and dr. diff 10.7 rear discs. The body and suspension set up is untouched as far as mounting locations or clearanced. Spring hangers are hotckis upfront with stock shackles in rear.Thank you!