I have a set of Timbrens on a 2005 F350 CC Dually 4x4. I use the truck to pull a 5 horse gooseneck, 28ft tandem duals gooseneck hay trailer, 32ft bp 2 car hauler and an assortment of smaller bp trailers. I've not experienced any noises or harsh ride whether towing empty or loaded. Same holds true driving just the truck empty or loaded. I just had to put a set of airbags on a 2012 Ford Edge (electric wheelchair on back) because Timbrens were not available for the Edge. My vote goes to the Timbrens.