I bought this used trailer to put underneath a 1992 Wellcraft Eclipse 197 Cuddy. Before we switch trailers out, I wanted to replace the rollers, tires, safety chains, etc. The only piece I'm having trouble locating is a duplicate bracket that's on the back left part of the trailer. The one on the right side is missing. I believe it's a side guide roller end cap, and the bracket only measures 2" x 3". Anyone have any clues?