Originally Posted by mgorczak1
That would not cause the chattering. When I spoke with the folks at UFP the only things that cause that noise is a bad shock absorber, air in the lines, or a bad master cylinder...in my case the shock was bad.
There are some old threads around here that talk about this problem when towing the trailer empty and adding the smaller orifice to correct this. I don't think I'm going to waste anymore time trying to track this part down. I only use my trailer twice a year and I only have to drive a total of 20 miles to do this. I'll put everything back together without this piece and see if I have this problem. If I do I'll have all summer to play around with an empty trailer.