I found some wheels at a really good deal. They are 15x8 with 4.75" of BS. According to my calculations, and assuming stock wheels are 7" wide with 5.25" of backspacing, they should stick out 1.5" more than stock and give about 0.5" more clearance on the inside than the stock wheels. Will these fit 31's on a 2-2.5" BB while retaining stock flares?

 

yeah, but you might rub the lca's on full turn.