wheels for dart?

Hello
I"m looking to put a 245/60/15 wheel (15*8) with a 4.5 back spacing on a 67 dart with a 8 1/4 rear end and no change with the springs. Will this fit and I"m really curious on what i should run for the front i have no clue, I was thinking like a 215/60/15 but i dont know about the back spacing and what size wheel.
Thanks and any imput would help alot!