Reminds me of my first camper purchase. I went from Indy to eastern Kentucky to buy a 23' toy hauler. I asked the guy, "is this a 2 in ball? he goes, oh yeah. Ok, so I took his word at face value, and I didnt know any better. I had my 2" ball on my hitch and away I went. Except. It was a 2 5/16...