Since the front end has to come out.... and you only need one or two specialty tools to strip that sucker apart, in a couple more minutes,
all that you want to know will be revealed.
That's kinda where I was going too...just don't know how much material was stripped from clutches and maybe even made its way in to shaft bearings, or under bands...if that's even possible.
I ordered a JW Ultra bell, and now heading in the direction of 518...
I now have 3 RB 727'S, and will be picking up a 518 pretty soon.