Ive had a few different wheels the last couple years. Currently 15x4 with 165s in front, 15x8 with 235/60r15 in the rear. Bbp discs up front, stock A-body 8.25 rear.
Have you tried 15x8's on the front? I've got a set of Steelies and a set of J Body 10 spokes - both sets are 15x8s. I definitely need 15s on the rear of my wagon - 14s won't clear the discs.
