Quoted from BigLebowski:
there should be a plastic guide underneath the metal guide using the same bell posts
Quoted from chalkup8:
Correct,it keeps the ball from touching and running down the metal ball guide piece.
Thanx, guys. So I can just use the existing posts and stack the metal piece on top of the plastic piece? I don't suppose you could snap a pic of what the proper finished assembly looks like? I should have the plastic pieces in hand by Wednesday.