I pulled it easily from the neighbors(2 miles) in neutral. Wouldn't that rule out the transmission?

Thank you so much for your help!

Would you say the motor is seized up?

Nothing. Tires just slid.

Yes it is in neutral.

The pulley wont budge a bit even with a breaker bar and a 18" cheater bar.

Standard or reverse thread?

How hard should it be to spin the pulley? I'm pretty sure I just spun the bolt but the pulley didn't budge

Ok I see it now.. Wow that's deep and looks like a pain to get to. I had to take a picture with my phone to see it. Any idea what size it is?

Please dumb it up for me a little... Which one would that be?

I know this is really armature but I cant seem to find where attach a socket to turn it over by hand.

I also removed the alternator belt because I read in a forum a seized alternator would cause this same "clunk" noise with no start.

Hello and thanks for the help in advance. I recently showed interest in a neighbor's 87 F250 that wont start but just makes a fairly loud clunk(starter engages). I was hoping it would be something as simple as starter or battery. I replaced both as well as battery cable clamps which were...