I have an '09 FatBob FXDF with a Frankenstein Rearend conversion. I noticed a while back that the drive belt was rubbing the frame as the rearend flexes on the shocks. I have tried all the adjustments for belt tracking suggested by the guys at Frankenstein to no avail. Has anyone else had this problem. The paint is wore off down to bare metal on the frame and is now starting to wear into the frame. The belt when tracking when in the center of the rear pulley is very close to the frame, almost a half inch closer than with the stock rearend.