Picked up an old 303 (mostly scrap- not even fit for parts) to rebuild and learn from. I've replaced everything- covers, housing, gears, axle, bearing... EVERYTHING. The only original parts are the cover plate screws and the lube port cover. However, I ran across a part on the original that I can't identify. There was no axle bushing between the bearing shield/housing and rotor. There was no bearing shield either. There was a metal ring with two notches in it that the set screws protrude through. It fits snugly into the housing recess above the bearing. Was this a stock part from some year that I don't have a schematic for? Everything I've seen shows the shield and the bushing above it. The reel is very smooth as is, but the rotor seems to have a little bit more slop than it should.