mkirsch wrote:
Respectfully, Wayne, yes they do bounce up and down. They may not "flop around" but they do bounce up and down every time the truck bounces up and down. It may not be visible to the naked eye but there is extra stress being put on the mounts with each and every hoop-de-doo in the road, each and every pothole. It's all about inertia.
If the mounting is not adequate, such as if the generator were strapped directly to the ladder, imperceptible motion would slowly become perceptible motion, then "flopping around" and finally the ladder with generator laying in the middle of the Interstate somewhere.
Uh? With over 100,000 miles on my camper with the generator rack carrying the generator, traveling on 90% back roads, Alaska, Dalton, Dempster etc, rough roads and not one loose bolt I guess the Flopping around is not occurring because my generator is still there.....
Maybe it's not flopping and bouncing up and down because of the bolt that holds the rack to the jack bracket is doing what it was designed to do.
47lbs/ 8 bolts and the loop at the top of the later then mounting on the roof is too much weight for your comfort level on each of those bolts. My roof to ladder bracket's sealant has not cracked and the screws are still tight after the 16 years I have had the camper with all that flopping around going on as you say.
Why do you say "They may not flop around" and then 3 sentences later say, "Flopping around will occur"? Geez
