Replaced Starter, Relay and battery terminals. Noticed the ground terminal wire was slightly corroded but the truck started anyhow after I changed the starter. Solenoid on the starter was loose is why I changed the starter. Took off next morning and the lights went dim and , of course, it would not start after I shut it off. Bad Alternator, I assume now. So got it home , charged the battery and now all I get is the relay clicking when I try starting it. I know that a bad alternator would not stop it from turning over, starting and I will have to change it but being it is only clicking at the relay has me puzzeled. Gimme' something to go on...? Bad battery cable most likely. Inline 6 cyl.