What brand of reman alternator is autozone providing? My experience has been the "OEM" brand remans are absolute crap. One lasted a year, another barely 2k miles.

You've checked and checked and checked the cars system, the one constant remains the autozone source. The charging system is very simple on these cars. 4 alternators in a row seems crazy, but then again its 4 alternators in a row all from the same source.

Id consider changing it up. Id buy either a genuine bosch reman from PP or similar (in boh cases the solution to my bad alternators), or id pull a original alternator from a junk car and see what either do

Every thread I read, says that a bad ground or connection will cause the alternators to keep frying......says the connector on the back of the alternator could cause the problem or a bad ground connection.....something causing the voltage to not move along....

I've been reading the posts since my last on this thread and it occurred to me that you said you were running an aux fan hardwired.

I wonder if that aux fan is causing an overcurrent situation and frying your rectifiers (diodes) in your alternator/s.

Try running for a while with the aux fan disconnected to see if your alternator maintains functionality. Then, if you feel squirrely, reconnect it and see if the alt goes out. Not a perfect testing scenario but maybe one that will nail the root cause.

I've had bad electric motors, such as the one in a fan, cause an overcurrent draw that blew fuses and circuit beakers reliably. This could be just such a situation.