My penthouse manual top sure is loud (rattles) over any bump on the road. The rest of the van is quiet And insulated well. The suspension is a year old from Action Van. Any suggestion on what I could do to quiet it down? Tighten or lube anything??
I found that the springs in mine were banging on the rail they sit in and the hardware for the lift arms. Insulate the points where they contact other metal. Foam, cloth, whatever you can find to dampen the metal to metal. Pull up the carpet trim from the area that houses the main springs and see what you find in there.