I will be ordering/buying new wheels and tires this week and i thought i would check with you guys for the correct answers first.My setup includes a 1966 chevelle with a ten bolt posi.I would like to run 235/60/15's on a 7 inch rim on the front. I would like to put 275/60/15's on the rear with an 8 inch rim.I would like the wheels to be centered properly.Would 3.75 b.s. work good on the front with 4.5 on the rear?Also the rims will be TT'2'S with b.f.g tires.I appreciate all the help.

That should work perfect. I'm running the same thing except for the 8" rim in the back. I'm convinced that's the back spacing you need with the 8" rim though. Go for it!

Lance