this is something i've wondered...since the MMW arms center the wheels in the wheel wells, do they save some tubbing area? you know since they should be pulling the wheel towards the front of the truck
i see you've already answered the question. but i've owned many OBSs and my dad last 2 trucks, including current, have been NBSs. spent a lot of time under each
issue i see with a 2wd is the NBS lower balljoint goes in from the top as the OBS goes in from the bottom. don't know if there'd be enough meat on the spindle to ream it for OBS