Finally finished up my research on pin boxes. This is the part of a fifth wheel trailer that hooks on the hitch in the back of the truck. Obviously a very important part. While researching I discovered if you buy a rig and later replace the pin it could cost between $600 and $1,300 plus installation to trade it out. The research is geared towards heaver trailers at 16,000 pounds or more in gross weight.
If you are interested in the research I’ve added it to the Foundation and Structure page of this blog. I would really appreciate knowing what pin box you decided on using. And if you have time, also what hitch you have with the pin.
If I’m understanding this right, there are actually three decisions to make here. What pin box, what fifth wheel hitch and what suspension system. I’m researching the other two components and will report on them later.
For now I decided on the following choices:
My first choice is the MoRryde pin matched to the appropriate hitch and suspension system. I’m still studying hitches but am leaning towards having an air bag on the hitch with the MoRryde pin.
My second choice is the newer Trailair – Flex Air pin. Again, the pin would be matched with the appropriate suspension and hitch. My decision could change if the Flex Air is limited to an 18,000 pound capacity. Not sure on that.
The Trailair – Air Ride is my third choice. We may be buying a used rig so I want to keep the option open to using what comes with the rig.
(Update January 2016) While at the most recent RV show a dealership owner told me he brings trailers in with cheaper pins boxes because people are going to change them out anyway. So I’m no longer judging the trailer by the pin it comes with.)