The beauty and reliability of the TrailairŽ air ride systems is their simplicity. The air ride pin box acts as a buffer, arresting the transfer of road impact between the tow vehicle and the coach to produce smooth, stabilized towing performance.

Generally, a truck and a trailer connected by a ridged hitch system (basically any standard fifth wheel or ball connection) will tend to fight each other as you travel at highway speeds. The faster you go and the worse the road conditions, the more the ride quality suffers. Not only are you dealing with road forces from traveling down the road, but also additional forces are created as the two vehicles fight each other causing a "diving board" effect. The TrailairŽ coupler's unique scissor action allows the air spring to absorb these forces and dissipate them and for the shock absorber to handle the rebound effect. The result is an improved ride for the truck and it's occupants, the coach and its contents.

Many RV manufacturers buy pin box assemblies from other manufacturers that specialize in this field. If we can determine the exact make and model of your coach, we probably already have a fit-up model.

Some of the names to look for on your pin box are Fabex, Leland, Lippert, Venture, RBW and Atwood, to name a few.If you have that information, you can determine which Pin Box is right for you.

Because the wide variety of manufacturers and the many years that fifth wheel coaches have been built, TrailairŽ does not have a replacement pin box already configured for every coach ever made.

If an identification is not clear on the pin box stating the make and model of the pin box, then we may be able to match a TrailairŽ air ride pin box based on style, width, length and bolt pattern by using one of the TrailairŽ multi-fit designs that are drilled on site on the coach.

The RV industry utilizes 4 basic pin box styles: Long, Medium, Short, and Telescoping. Each style has various dimensions and bolt patterns, depending on the manufacturer of the pin box.

Visit White River RV today to see which one will work for you.

• Level the vehicle front-to-rear & side-to-side
• Adjustability 5-100 p.s.i.
• Stabilize the vehicle while loaded
• Maximize vehicles load carrying capacity

• Each air spring is inflated to 160 p.s.i. before leaving the factory
• Tested to over 1 million cycles
• Each kit is weighed to ensure component count
• ISO Certified