Hey fellow Safari owners, I've been studing my brakes, both on-unit & on-line. They appear to be Dexter 12" X 2", as shown on Mark's RV Supplies, but with round magnets. Do the oval magnet work/fit? I'm needing magnets and shoes, the rest appear fine. However I am interested in the backing plate assembly, Southwest Wheel has some great pricing. Getting the drum turned at a buddy's Machine Shop, My hubs have Timken bearings 25580(inner) and LM67048 (outer). I'm wondering if this is the orginal hub? What have the rest of you found?