Just saw your message Troy. I keep the boat in Charleston 200 miles from where I live and work. The best way to help you would be for us to wait for a couple of weeks until I get back to the boat and can measure the tv and take a few pictures of the mount. Otherwise, I'll be guessing at the answers since it's been a few years since I did the install. I guess you've figured out it was done so that the tv can be mounted in the cabin or out in the cockpit, and I can take a few pictures to show how I made the universal mount for that. On the other hand, if you want to go ahead and get started, I'll guess at the answers and give you my best description. Let me know.--Sadler