Have a 64 skylark. I have 15x8 4.5” bp on back with 255/60 tires, fronts are 15x6 3.66” bp torque thrust with 205/65 tires. I’m wanting to go with us mag Indy u101 wheels, 15x8 4.5bp 255/60 tire in the back, 15x7 3.80 bp with 235/60 in the front. I know the back will work, just wondering about the front, it looks like they would work since the 15x6 is sunk in from the fender a bunch. Anyone tried this backspace before?