![]() ![]() I could see trailer movement rocking the truck up and down. Also would the pin weight of the fifth wheel make a difference in that the movement up and down would be transferred to the trucks suspension. I also wondered if the fifth wheel hitch would have a great effect on the up and down motion. I guess one question would be does the Flexair do a better job with the longitudinal and lateral movement which is the chucking motion. Seemed like the Flexair, which is replacing the Trailair, had all the bases covered in their design. There are several directions in movement that effect the ride:Īs I researched each of the above pins I had to consider side to side movement with back and fourth (called longitudinal and lateral), as well as up and down movement. Oh, almost forgot, you have to consider what axle and brakes to use. For example if you have an air bag on the pin and the hitch. More important, some are saying one system may work against another. But others say the Morryde pin takes care of the “chucking” which is the jerking motion and then use air bags on the trailer hitch to handle the up and down issues. Does a combination work better? Some use the Morryde independent suspension which allows better up and down travel while using an air bag system for the pin. What pin box, what fifth wheel hitch and what suspension system. There are actually three decisions to make here. Here is a link to the Lippert solution called the Whisper disc. According to Lippert “The Flex Air Pin Box combines our time-tested Trailair air ride technology with our Rota-Flex pivoting head to create an unparalleled ride, eliminating chucking and the vertical tug-of-war between the fifth-wheel and tow vehicle.” Trading out a pin box is about an $1,100 plus expense.Īs a side note, I’ve read about people placing a disc on the pin of the pin box above the hitch. ![]() I’ve heard Lippert is doing away with the Trailair and replacing it with the Flexair. Suppose one has to also consider what pin box works well with any given suspension system as the two work together along with the actually fifth wheel hitch. Or join the crowd that are removing the pin from their brand new rig and replacing it with something else. Maybe I’ll have to have a second choice for a pin box as well. The only problem in there are some fifth wheels (in 2015) that I’m interested in that don’t offer it. This would be an easy decision if every fifth wheel builder had an option to use any of the above. It uses adjustable air bags like the Trailair.
0 Comments
Leave a Reply. |