I just bought a used OEM Land Rover receiver hitch off ebay. It came in today and installs fine, however, when you install it and lock it and remove the key, you can still partially pull out the green handle and partially turn is down. The hitch stays on and you need to key to remove it, but I am surprised at how much play the green lever has if you pull on it. Is this normal? Anybody have theirs installed and can pull on it and check for me? Thanks. Even though it was from ebay it was still expensive. Thanks!