I bought a 2013 ranger15 about a year ago.I had a leak in my camper near the door I thought was coming from a faulty door seal,replaced door seal and it still leaked.So I thought it was my cargo door seal since water was in there and the puddle was at corner of door and in cargo door,replaced cargo seal.Nope that wasn't it either.After much head scratching I found the leak .Where the aluminum threshold is there is two pieces of aluminum that run up the sides of the door.I thought this was one piece,nope.these three pieces are separate.They are caulked in the corners.The caulk failed letting water in on ?that one corner.I recaulked both corners and it's been dry since.I was surprised to find out this wasn't one piece .