I recently got (for free) a 15' boat. Black deck and hull, ruined red and white interior. Johnson 55 engine. I thought it was a 1965 Lone Star Mustang, until I located the HIN, it stated "Chrysler" and the number is 143211143. So now I'm thinking it's a 1966 after researching more. Is there any way to find out exactly what year it is? Thanks. Oh, the Johnson is going away, I got a 1967 Mercury 650 to go on it.