I need to add some shims to the axles of my Fly Baby to reduce the side-to-side
movement of my wheels (the axles aren't threaded at the end, the wheels are held
on with a cross-bolt through a bushing).

I basically need some thin metal washers with a 1.5" inside diameter. I'm
suspecting the "Ring-Grease Seal" items on Cleveland 600x6 wheels is what I'm
looking for. However, there are multiple part numbers for the same item
(153-00300, 153-00400, etc.). I'm suspecting these are differing
thickness...anybody got a table that shows the thickness by part number?

Ron Wanttaja