Have a new to me dual axle trailer for my 20 ft mako I have two bunks and three rollers one roller in the back one in the middle and one of front. I noticed that the front roller is not rolling and with the boat going on and off it has wore a groove in the roller. It's a new roller and with the boat off it spins freely. My question is should I just remove the roller completly? It's obvious there is to much weight on the roller. what do you think?