Thanks. Won't get a chance to try again until tonight since my dad's basement flooded yesterday and I had to bring my shop vac over to help him out. I'm going to replace the grounds. I'm thinking I can access the power from above instead of below the engine now since I don't actually need to replace the start (... yet). Going to give a breaker bar, pipe, and heat a shot tonight after just to show that bolt what for.
Any easy way to test the starter solenoid or starter itself if the wire replacements don't do the trick? Judging by the wiring diagram I finally found it seems like the solenoid is a likely candidate with the magnetic switch it uses since I hear the click.
