Stop in for a cup of coffee

yup.. on mine the outer ring is cast and the inner plate that rides on the axle flange is steel and they are welded together and the plate is at least .300 thou off center which would be fine if the shoe surface was cut round.. but nope. kinda mad bout that. but nothing i can do..
Good luck finding a shop with one of these today. PSA paper on the drum surface and turn it and adjust as you go will mate them to the drum.
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Pulsating petal sucks.