Drum has a slight lip on the inside of small bushing bore that's good for ruining the bushing when you press it in. I realize this could be a mushroomed surface from wear but in this case it appears to be mismachined at the factory. Trans was a low mileage unit that was actually pulled before they burnt it up (I know, right?!). Plastic washer looks perfect, face of drum surface doesn't appear worn down in any way. Anyone seen this? Torn between taking it back apart and cutting that lip off in the lathe or simply driving the bushing in from the opposite way and leaving it.