65amp wiring/trouble shooting

Glad you brought the subject back. Because of your question, just went out and removed the screw your referring to from two alternators. Had no problem replacing them. It takes a 5/16 six point socket or wrench. Of course you can remove the alternator if you don't mind the additional time. To get good photos of the wiring harness, you will have to remove the cluster. Sounds like you have plenty of experience with that. It really depends on how far you want to go to answer our questions. Please don't unwrap the wiring harness just to answer a few questions.