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I am starting to figure things out, I downloaded the TMs and I have to go through my manual, but I left it at the shop. I just bought some slave plugs so I can charge the batteries easier. I also have a really big jump pack, my 24 volt forklift. I am looking for the 6CTA manuals and parts...

So it has the overdrive transfer case and 6.44 gear ratios in the axles like all the others, or is that something not designated by the models?

I do not know the current draw of the transmission yet, frankly I am not sure how to figure that out. I was looking at another thread and someone had an LMTV and it had a 12 and 24 volt generator all in one. Until I commit to the civilian cab, I will probably go with an additional alternator...

So my M931A2 is a 939 series truck? What is the difference between a M931, M931A1, and a M931A2?

That is awesome. So you did not need to do anything to the transmission computer? I am asking because I would like to do something similar in a civilian truck with a similar setup.

I bought an M931A2 recently. I am trying to figure out ratios and parts. I keep seeing reference to 939s and I don't understand what the differences are. I see M939A2 as well. Can someone break it down for me? I know my truck is a 1991 and it has the 6CTA engine. I am trying to figure out...

More details please. Where did you get the parts? I know some ambulances had 2 alternators. Another thing, do you have another 12 volt battery system as well?

I recently acquired a nice M931A2, I know the 6CTA 8.3 came in lots of civilian applications so I should be able to get an alternator and starter. I need to run a 12 volt electric brake trailer for the time being and I was not sure if the 24 to 12 volt converters were the way to go. In the...

I am trying to see if this works for pictures. So I am guessing that we can only use photos through SS servers. That makes for a terrible tutorial.

This is a great question, I know when I was looking at increasing the HP on my 3126 (civilian) that one of the requirements was to change the harmonic balancer. I am thinking there must be info available from cummins about this. These engines were in motor homes and those are usually the...

It appears that this one file is missing. http://www.plumbers.cc/images/m925a1...Order-1990.pdf Any chance anyone could upload it again or point me in the right direction?