So the jeep was acting weird on my drive home and when I got home and pulled the drum broken parts came falling off So I am planning on going with Metcalf's front disk conversion and then getting a stock replacement kit for the rear. But I cannot seem to find a kit for a 1973 for the life of me. The years will go until 1971 and then for whatever reason skip 1972 and 1973 and start right back up at 1974. Why? Do I have to go and nickel and dime every piece for the rears? And how come the parts for the 1974 won’t work on my 73’? Thanks for the help.