Wheel offset

Hey ya'll. just got a set of 33x12.5 tires. I was running 31x10.5 with my 3.5" lift no problem. Cut front fenders. About to cut the back. I can't turn fully without rubbing in the front and I need to figure out what size spacers I need so I am rub free. On American racing wagon wheels. Don't know the offset yet, haven't measured. Any help is appreciated! Thanks. -Tyler.

You should probably get 1.5" spacers. They are a common size

1.5" like 4.3 said, torque them and you should be set. Bump stops should help them from over stuffing when you start making the suspension flex.