I had this air ride pin box on a 2000 Jayco Designer replacing a Leland 7910. I have a new Jayco and this pin box would not fit it, so I had to purchase a new one. (Link below refers to it)
This pin box is rated at 24,000 lbs. It is in good shape, as I had done very little traveling with it.
The cost new is $800.00+, I am asking $400.00 plus shipping. (Quite Heavy)
I am in Maine. Phone # 207-266-7287