[Tubesforme]

My model 20 did not have any bushings when I disassembled it.  I don't think the 21 was much different chassis-wise. Shim it with the hard rubber washers if that's what it takes to align it to the cabinet.  None of us are going to come down on you for it.  I for one believe in the "whatever makes it work and not look obvious" approach.  Take care, Gary

I agree, I know that I had never before seen a model 20 that used the washers, but my 21 did need a 1/8" lift to align the shafts properly. Thanks Gary.