I have a new to me EZloader roller trailer (probably 20 years old or more)that came with a 23 foot sailboat I got last fall. The roller arms are flipping outward. All but one arm is missing what looks like a bushing the roller arm pivots on. that one arm seems to be doing what it is supposed to, and is tilted in during the load. If I get the bushings that I think are missing, should that fix my loose pivoting roller problem. I have overcome this by completely submerging the trailer so the rollers float. Then the boat is able to load and the rollers fall into place. I did adjust the roller arms so they are off center from the arm with the longer side on the inside of the trailer to help with teetering the rollers inward, but a couple of the rollers are right up against the keel. Will the bushing things solve my problem? Thank you