What fits>

ok 71 Duster completely stock. Am getting and A body 8-3/4 rear end with LBP. I have been through every thread on this forum and am still confused.

I see most say that a 15x8 with a 4.5 BS and an L 60 or 275/60 will fit no problem a little tight. i have a spring relocate kit to use if needed.

Problem!!!!!!!!!!!

Cragar only makes a 15x8 with a 4-1/4 BS will that push the tire and wheel out too far?

Torque thrust makes a 15x8.5 not a 15x8 what BS to use with that wheel?

Dont want to toss good money away on the wrong backspace and width combo. Some help please.

Sheldon.