Hi ptjamison,
Welcome to the Heartland Owners Forum and hopefully to the family. We have a great bunch of people here with lots of information and all willing to share their knowledge if needed.
I am sure the plant will to want to know what model Big Horn your looking at and if a 09, maybe even the VIN number would be good. If your looking at one from a dealer he should be able to give you the information you need and even supply the new pin box.
Enjoy the forum.
Jim M