hello, I was wondering about what dana 60 front axle I would put in my 1977 f250 hi boy. Did the 1978 or 79 3/4 or 1 ton four wheel drives come with them stock or where could I find a dana 60. Also if they do come in 78 or 79s, would it bolt up the same and if not, what would be different. thanx
f100reborn