Post your wheel and tire combos.

Fisher said
Can you get a 15x10 wheel with an actual Protrac N-50x15 uner a duster? i am moving the springs in. What bs will work if you can?

How big is an N50 (section width)?

Under a dart a 10" rim with a stock 8.75 rear requires 7.5" of backspacing. And there is ample room left over. You have more room than a dart.