I have an old 83' ford with a 4.9 6cyl. Heres my question. The truck wont start and with the distributor cap off I noticed the rotor isn't moving. Whats more likely, stripped timing gear or broken distributor? The truck had been driven all day and after a fillup it started and drove about 20' and just died. One other thing I found was that 3 spark plugs were finger loose, which couldn't be good. Any help is appreciated.