My 87 Camaro is charging too much, and this is the 3rd alternator?

The Camaro charges too much and it shuts everything off in the cab. I have changed the alternator a couple times and it keeps doing it. Any suggestions?
My 87 Camaro is charging too much, and this is the 3rd alternator?
this alternator should have a flat two-prong plug, the wire that is hot all the time is the sense wire, if you have low voltage there it will cause the regulator to think that the battery is low and make the alt overcharge, a similar result will happen if you have a problem on the main battery wire, due to either a bad connection or fusible link problem.



you can isolate the problem by adding a helper wire from the battery positive terminal to the sense wire, and then from the battery positive to the alternator output terminal, if either helper wire makes the alt stop overcharging then you know where the problem is and you can look closer for a bad connection or damaged wire, or just replace the bad wire altogether.
My 87 Camaro is charging too much, and this is the 3rd alternator?
Where did you get the alternator? Only buy AC/Delco