Thanks so much for all the info. This is great!

According to the drawings, the bottom "bushing" is an off the shelf needle bearing.

The top bushing is listed as either a brass eccentric bushing, it also lists an alternate off the shelf needle bearing (of a different size from the bottom) + MS (brass) bushing.

The bushing that is in there appears to be glued in. Do you know the proper dimensions of it or the removal/replacement instructions?

Dan