Start with picking a wheel width...then you can figure offset from there for how you want the wheel to fit the car...further in or out. For OD stay at 30.7” max.
I run a 30.4” tall 305/35 on a 22x10.5 at +30 offset. This is as far as you can push a wheel out and be flush with the fender...and it’s IMHO the perfect fit for these especially with a drop.
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