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desiphil's avatar
desiphil
Explorer
Nov 20, 2017

Trail Air Roto Flex noise?

Ok, so the story is this... I just traded in for a different truck. When towing with new truck I noticed that when braking or accelerating the pin box is making an irritating noise - like a taping noise. I confirmed it was the pin by having my wife watch the hitch while I moved truck back and forth. She said it is flexing and the rubber is tapping the base. I have not checked the torque on those bolts and can't seem to located recommendation on what they should be torqued at.

New truck is a dually and sits about an inch and half lower than old truck. I also added 1" taller tires to FW so the rig rides almost completely now, where before it rode pretty nose-high, but was dead silent.

Do you think it's the bolt or is my rubber pad all of a sudden, completely shot?

Thanks for the help.
  • When you wife it watching, have her watch the Rubber pad, there are reports of the pad shifting. Lippert seems to have problems getting a good King Pin set-up. We had the more expensive Tri-Glide on ours and changed it out to a Mor/ryde King Pin Box and couldn't be happier.
  • I can't help you other than to suggest for her to take the smartphone and video the whole thing
  • After posting this on a couple of other forums and seeing some responses I'm semi-convinced now that the noise is coming from the attachment of the B&W companion on the Ford OEM pucks.

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