I know I’m late to the party here. I haven’t been active on the forum for a long time. But I have the RBP boards too, and they are annoyingly loud when they retract. They make a loud BRRUMP when they first start moving. The arms that the boards attach to seem to be loose on motor, but everything is tight. I put a 1/4” thick piece of rubber between the motor and the body of the truck and it helped a little, but it’s still bad. They are so loud that when someone rides in it for the first time, they look at me in shock and ask “What was that??!! Did we hit something?” I recently rode in a friends Ford with power boards and they were barely noticeable. I would NOT recommend these boards because of the noise.