In/out play in coupler

Boduke said

....Or if im supposed to clearance it with a file? Thoughts.

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IMO, Check the can for rolled burrs and fit the shoes as needed. The shoes are tapered on the outward corners to allow for the radius in the can corners. The shoes look porous so they shouldn't be too hard to file fit if necessary. The looser they fit the more wheel slop you'll get.
BTW, There's a way to crimp the seal retainer on. It's a PITA especially in a tight location. Most just use the appropriate spring clip.