RandyA Posted August 5, 2018 Report Share Posted August 5, 2018 Quote General Background: Our Cedar Creek fiver had one of those Trail Air pin boxes with an airbag. The hitch on the truck was a Reese without an airbag. The combination worked good but the trailer I bought after the Cedar Creek fire only had a MorRyde slider pin box - no airbag. I initially pulled the new trailer with a solid pin to hitch. This was about 2,000 miles - mostly on Interstate. Bridges and broken pavement were extremely hard on both the trailer and the truck. I know the ride was rough because the covers on the lights in the trailer bedroom came off and all of the stuff in the bathroom cabinets was scattered. Due to the good graces of fellow forum members, I was able to acquire a TSLB two airbag hitch. It took a while to mount it on the Volvo and then pull an adequate number of miles to test the difference. I can unequivocally say that the difference was a significant improvement. With approximately 3,800 pounds of pin weight, the airbag hitch has reduced the displacement of items in the fiver significantly. It has also improved the ride in the Volvo as we are no longer thrown upward out of our seats when hitting the joints on most bridges. The real test came when crossing a long bridge that supports had settled making the bridge surface like a multiple hump camel. The up and down oscillations were dampened much more than my previous setup. Anyway, solid hitches and pin box combinations on an HDT are definitely bad combinations. I've run the test both ways and know the difference. Air bags or air cells are a must. Quote Link to comment Share on other sites More sharing options...
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