Scott, I'm looking at mine. I built mine in January as part of the Annual 24 hour build. I see the mounting point on the rear end. Mine also touches on the fender piece. When I flip mine upside down and look down at the floorboard, there is an offset, width wise, about half way, length wise. The offset allows the outer part, (or wider part), to mate to the fender unit. Wow, I hope that makes sense to you becaue it is not too clear to me. I can take a picture if you need me to.