Most AEV and Quadratec wheels use 5.2 inches of back spacing. Quadratec also offers a couple wheels with 4.5 and 4.75 inches of b.s. That’s too much offset for my liking.IMO AEV wheels are the best wheels from an engineering, Jeep specific wheel, I think the Quadratec brand wheels are pretty decent as well but they have a little more offset than I like.