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Two issues I see there, first I dont have a load tester. Second is I'm not sure what I would do about the battery cables as they sit vs converting to two batteries. Here are photos of my current setup. Any ideas?

What would I have to do to switch to a pair of group 31’s? Any modifications and what about battery cable routing. Also is that something I can pick up at a generic auto parts store? Also I'm on 4 batteries currently, ive seen photos of guys who have 6. Not sure if that makes a difference. Was...

So I went and disconnected the exciter wire and started the truck up. Seemed fine at first except voltage was showing around 22V. Made it about 500 yards before trans started freaking out and dropping into neutral, I'm assuming now its getting hit with low voltage and cant function. So now I'm...

Well as tempting as a new FREE WELDER sounds I guess I’ll just swap the new voltage regulator over and report back. Do I need to disconnect all the batteries to swap the regulator out?

I think ill try and swap my regulator for the one on the refurb alt I picked up. I also found this video about the “exciter wire replacement for high/low voltage” and wonder if this is something I should look into at the same time… My truck already only has the E wire connected to the...

Well holy smokes, that didn't work out. Here’s the update step by step. Put it back together and started heading off the property to the main road. On the way out I noticed the volt gauge seemed much less erratic. Before it was a near constant and fast bounce between 26 and just over 28v...

Ok, interesting development. I was 2 bolts away from having the alternator out…had the long alt mounting bolt left holding it in place and the last connector on the alt I was about to remove was the 28V bolt. My wrench just tapped it as I was trying to slide it into place and what do you know...

Nothing loose on the polarity protection device/LBCD or anywhere else along the line that I can find. Guess im headed to the alternator swap unless theres anything else I need to check first.

Awesome, thanks. No battery disconnect on mine but ill go drop the spare right now and go back down the line from alt to batteries before I start taking anything apart at the alternator.

Everything was tight at the alternator/volt regulator and all 4 batteries when I checked, unless there is/are additional component(s) in between. I’ll go trace from the batteries back to alt to make sure. Past that I guess I'm going to swap this alternator and see if anything changes, unless...

When I checked the alternator last week i was getting 13.8-13.9 and 27.8-28.0. I did just get a reman alternator with regulator. Time to swap those in?

Hey all, I've got a new to me 2001 m1078a1 that started throwing the D1323 code, voltage from ECU high, on the Trans. So im trying to locate the ECU voltage regulator, part # 19207-12378784-001 Ive read as much as I could f on here and tried to dig into the service manual but I just cant seem...