wobble
Mickey, if this is a Farley II, it's pretty easy to the get the front plate misaligned which will cause a wobble. The front plate should actually sit a bit lower then the main unit and it has a horizontal groove towards the bottom that should engage the lower plate that runs horizontal in the main unit. This will keep it from rocking. This is hard to explain and probably harder to imagine, but if you take that front plate back off and find the groove in the bottom it should make sense. You just have to lower it to mate with the lower plate. Don't ask me how I know this ;-)
Good luck .... Scott