Forum Discussion
DSteiner51
Aug 24, 2016Explorer
Dayle1 wrote:
Your second question is probably w/o merit, because if adding stress by adding a GN extension actually REDUCED the failure rate percentage, then the science of physics is totally wrong. Maybe the number of GN extensions is very small, maybe the failures are not talked about, maybe the miles towed is small. Doesn't matter, increasing a lever arm length adds stress, if physics is right. Same story at 65 mph, add a lever arm, hit a pothole and stress on the fiver frame will be worse, again based on physics. Now if all towing conditions were smooth as glass, all speed changes were very gradual, maybe then that extra lever arm might have minimal impact. The real world is different.
The physics is correct. For example, using my own experience. The Pullrite Superslide I now use puts a totally different stress on the current 5th wheel then the gooseneck adapter did the old 5th wheel.
I boondock, and where I boondock the gooseneck had enough movement but the Pullrite has limited movement left to right. It hits the stop and then the result is that one side of the truck is lifted until the wheels on that side get light,requiring four wheel drive, putting a twist on the pin box frame mount my gooseneck never did. I would not be surprised I will be a candidate for a broken frame in the future.
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