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if you have the 200 amp system (and possibly the same for the 100 amp system) here is the troubleshooting guide from Niehoff https://www.ceniehoff.com/Documents/Ctrl_Hyperlink/TG0017B_uid882013200562.pdf

what generator/alternator do you have installed?

The brakes are set up to brake evenly when the truck is loaded up to near it's max weight, and there really isn't anywhere to put more weight in the front. That means a lot of weight in the back will even it out. But as has been said, they're old school tech and don't have ABS or anything...

I did it to my hood even though I don't have the armored grill, and I love how much more rigid the hood is.

if you are climbing a hill at full throttle, then you aren't using BTM. If done properly it will lock the differential, and you won't be able to spin up a tire even if it is off the ground. It's also just enough throttle to override the brake pressure (or releasing the brakes just enough...

The ones here in WA? Not me, but I know who did, and if they both work it's likely that I'll get one of them from him. I looked at them at the yard a few weeks back, and yes, they do look very clean.

That I'm not sure about. I know they had some blowout issues that seemed to be related to running them a little underinflated or something like that, and started scrapping any of them over 5 years old for safety reasons, but I don't recall hearing anything else. I wanted the MTRs as winter...

I ordered some tires a few weeks back. Went to go pick them up at the shipping company's dock on Friday. Ended up being the wrong tires (I ordered MTR and received MT) Called the seller, explained the situation. He called me back 10 minutes later and confirmed it was their fault. Told me a...

The hubs work just fine as is, and I've never heard of anyone breaking one no matter how stupid they were being. The oil bath system works fine, provided you actually check fluid level once in a while to make sure it's still filled to the correct level. I've never actually heard of aftermarket...

Try running some seafoam or StarTron through the next couple fuel tanks to help clean things up. Other than that seems pretty decent.

Your 6,5l GEP engine is not supposed to run at 700 rpm ? +- 25 I don't know what the GEP engines are supposed to idle at, it might be 700 like you say. 6.5 and 3 speed makes me think it's likely a detuned 6.5, and the specs should most likely match the 6.2. I say most likely, but I am just...

redline is 3600 rpms, though I've also seen it said that is the max rpms under load, and under no load it could do 4200 rpms, but what's the point of that? Idle is around 550 rpms give or take 25 https://en.wikipedia.org/wiki/Detroit_Diesel_V8_engine

I also can't say 100% certainty, but the M1123 series was still being made in the mid 2000's. When the trucks get reset sometimes the data plate gets replaced and the only date found is the reset tag. GM stopped manufacturing the 6.5NA engine in 1999/2000 timeframe, then GEP began making them...

None of the military engines were electronic, even the GEP 6.5 and the 6.5 turbo motors aren't electronic any more than the 6.2 they replaced. Any non-turbo military 6.2, 6.5 GM or 6.5 GEP should bolt right in no issues, no major modifications, and as RWH said, the 6.5 GEP has much better...

First of all, just because it is off grid doesn't automatically mean that the codes don't apply or can just be ignored. It might be true in your area, but unless you've talked to an electrical inspector, the power company, or a professional electrician who knows the codes in your area don't...

also in the picture 2 of them use shiny retainer bands, the other 2 flat black. Between that and the shiny paint (can't find a single shaft that has anything other than flat black) and the pricing being lower than everyone else, I personally wouldn't put any faith in them

JP8 is basically A1 jet with some additional additives. Diesel is similar to both without any of the additives needed for high altitude and whatnot. I know we ran our HMMWVs on diesel or JP8, just used whichever was closer at the time. In the end I don't think it will make any difference...

They used to be a good choice, but now it seems to be hit or miss as to whether they are OEM or Chinesium. If your budget is a little tight and doesn't allow for a full set of OEM, you can pick up half shafts from Autozone with a lifetime warranty. Just use a 1992 Hummer H1 for the parts in...

Wolfer Parts has a long and sordid history with selling Chinese parts; it's worse that they use deceptive wording to try to make them sound like they are OEM when in reality they aren't even close. There are a few reputable distributors like Hummer Parts Guy (HPG), Kascar, or Mac Motors and...

Tone rings are for the ABS on the H1. As Action said, you don't need them for the HMMWV. (Also, that "new" set on ebay is likely made in China. They might work fine, or they might have major issues soon after installing them. For good quality half shafts you should purchase from one of the...