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For the front(with 12" rotors) Weld ProStar in the 15 x 3.5 size with a 165/85R15 tire, for the rear Weld ProStar 15 x 10 with 7.5" backspacing and a 5/16 spacer with a 275/50R15 tire.
These size tires are the closest to duplicating the stock tire diameter.
Don't forget longer studs(68mm) and the proper lugnuts.
If you have J55 brakes, you may need a spacer for the front, I believe it's 5/16 as well.