I was wondering or at least asking for a comfirmation that they have a brass bushing in both sides riding the posts. I have had trouble with adjustment since I put it in the table with out the springs. I took it apart and it has a brass bushing on one post but not the other. I'm assuming I was in a hurry and lost one without seeing it. I looked on their web site but can't see them in the diagram. Could some one help?