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It has a wire loom on it now!

Thanks for the input. Problem solved. The starter wire was shorting on the frame and burning out the alternators. Don't ask me how but that is what was happening. Luckily I have a surplus of used CUCV alternators laying around. Once I found the short on the frame and fixed it I got 2 good alts...

At least I rebuilt the fried fusible links on both alternators before I hooked it all up again. Looks like my packrat buddy probably chewed on the started cable and get a good shock. I hooked it all up. Connected the cables. Switched the 24 volt battery disconnect and immediately saw the sparks...

Well the alternators must have put themselves on backwards one night after a party. Everything else seems to work fine. I didn't rewire anything. I get what your saying but I haven't changed the alternator wiring. I've checked for that even though nothing has changed since I drove it 3 weeks ago.

Without hooking up either alt I can turn on the ignition and get all the right responses minus the gen lights and the volt meter; seatbelts buzzer comes on, wait light, glow plug solenoid activates. I still don't have a clue so I'm hesitant to hook up the spare alternators.

Some day this will become a lesson learned. I installed another alt on drivers side but tied up all wire connections. I also tried up the repaired blue wire on the firewall that goes to pass alt. My plan was to hook up batteries and check for proper voltage to driver alt. When I hooked up the...

The gentleman at the alternator shop had zero insight for me. I don't think he wants to speculate. They will rebuild the alternator regardless. Now to clean a few things up and start testing wires with the volt meter to be sure I'm getting the right voltage at the right places. If anyone...

The 24v blue wire off the firewall goes to the output side of the pass alt. I'll be replacing that in the morning. The drivers alt spit out the smoke but the wires all seem ok. I may just go ahead and replace them all anyway,not that tough of a job. I'll see what the alt shop says in the morning...

Yup, I get that. I'll be taking the alternator to the shop tomorrow to see what they say about it. I'll also be checking all the wires involved to include the blue 24 volt wire coming off the firewall. Even though it doesn't appear to have anything to do with the drivers side alt it was also...

No gentlemen, I did not hook up the batteries in parallel. I hooked them up in series as designed, as always.

So 3 weeks ago I started working on the rearend of my M1028A2. https://www.steelsoldiers.com/threads/m1028a2-rear-end-project.197395/ I got it all back together and went to start it and it's dead. I mean dead... 1 volt per battery on the meter. I've left this truck sit longer than this before...