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Our M1083 has an OEM dual voltage 100 amp alternator, which seems to work fine. However, when we bought the truck, we also bought a new C.E. Niehoff 260 amp alternator, because our plan is to install a 12 or 24 volt roof AC unit on the cab, and I think the factory 100 amp alternator wouldn't be...

Our M1083 has the typical four-battery setup, with 12 and 24 volt circuits. I've noticed that many people have switched to two batteries instead of four. I'd like to switch to two larger batteries, and then move them a short distance to help with outside storage. Any issues/problems when you do...

I know I'm going to have to provide access to the transmission's mounting bolts once the habitat is installed, and I think I've figured out how to do that, but as I was looking at it, I was wondering how the transmission is removed. (God forbid) Can it be removed from underneath, or does the...

We're building up our 1998 M1083, and plan to use a spring-return subframe with a composite box. I was watching a youtube video recently, where a couple stopped and parked their Unimog in high winds. (The Unimog also had a spring-return subframe) The winds were so strong that you could see the...

Our 1998 M1083 is a pre-ECU version. I would like to install an aftermarket cruise control. Has anyone done this on a pre-ECU LMTV/FMTV? The mechanical installation looks pretty straightforward, but I'm most concerned about how to get speed info to the cruise control's brains. A couple of...

Hello. I was cleaning the battery terminals and found this component (pictured) clipped into a bracket in the battery compartment. What is it, and what does it do? The markings on it are all scratched off. I see pictures of them in other rigs , but I can't find any mention of what it is, or what...

Our M1083 came with a defroster "guide" that looks like it's supposed to direct the defroster's air onto the windshield. (Pictured) I've seen others that are made with plexiglass, which provides the driver with a much better view of things that are close to the front of the truck. If the guide...

As we plan our mods to our M1083, I was wondering what others did with their auxiliary cooling fan/radiator that's located between the frame rales. It sits pretty high above the 2nd set of rails. If we install a third set of rails to mount the box, the fan looks like it's going to be pretty...

Hi again everyone. When we bought our M1083, the CTIS controller's lights were all steady red when powered up, which I've learned means it is pretty much useless. While searching for a replacement, I came across an identical-looking Spicer controller, but it says it is for an M939 rig. I watched...

Hi. Kevin here and this is my first post. I've been reading LOTS of posts over the last few months and found them to be very helpful, but now it's time to start asking questions. We purchased a 1998 Stewart & Stevenson M1083 a few months ago for the purpose of turning it into an off-road RV...