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Agreed. Power study suggests you could get away with a 100A alternator that is at times pretty close to running at capacity..... On the other hand, the 260A in the same circumstances, will only be running at 1/3 to 1/2 it's rated capacity. Meaning it will run cooler and easily tolerate sending...

As a contrary to Ronmar - no disrespect intended or implied because there's plenty of ways to skin this cat and it's down to what you are personally comfortable with - I would point out that the 260A is the standard alternator used on all A1P2 trucks and I have no reason to believe it's any...

The HMMWV 200A is an option. But now your competing against not only FMTV owners, but also the whole HMMWV community for surplus. And they are designed to mount on the driver's side so mounting them on the FMTV is a dog's breakfast of bits and pieces and the regulator has to be remote...

It's larger in diameter and longer and requires a longer belt since it sits farther from the engine block. The 260A weighs 72 lbs. The 300A weighs 98 lbs. I think the 100A is around 50 lbs.

Oh yeah. Absolutely. You will have to space the shock tower out and put a window in the backside of it. I just installed one on a 2004.5 A1R (non coil over) truck and I have the same mount I on my personal truck. Same one I posted above. Fits the 260 and the 300.

The easiest option is to just replace the 100 with the 260 and be done with it. I've never seen or heard of a bad 260. They are built like tanks. You can carry a spare VR but that's about all you really need. And for an overland application - assuming you keep a large battery bank like the...

You could also use a couple Victron balancers. I use two of these for my house battery bank that is composed of four 12v batteries but my solar charges at 24v. These burn power off whichever battery is higher to bring them back into balance. You can stick them between any pair of 12v batteries...

From those in the know, I'm told the upgrade to the 260A alternator was due to increased electrical demands in terms of equipment being added to the trucks once they arrived at the destination unit, rather than the 100A being particularly unreliable. Blue Force Tracker computers, radio and...

Yep. Super common failure. Oil pressure too.

Why would you want a GPS speedo? The ECM outputs a pulse per mile signal..... :unsure: I am considering this (which does have GPS as well): https://veratron.com/products/vmh35-d_gps

Much easier if you start a new thread vs. grave-digging one from 2018. There is a sticky at the top of this forum with parts, fluids, capacities: https://www.steelsoldiers.com/threads/lmtv-fmtv-quick-parts-reference-spreadsheet.155667/ You can also consult the Lube Order (LO) in the TM. The...

They are not metric. It's DOT air brake and it's all 100% SAE. Hardware stores are useless. You need to visit a truck/fleet shop - many NAPA locations have this stuff. Fleet-Pride, etc. That is the correct routing going through the cab body like that *on the older trucks* - they changed it on...

I'm planning on working with a fellow enthusiast on an AC retro-fit for the stock heater box that will be much more economical than the (currently unobtainable) "gen 2" Red Dot units...... Basically we just need to build an extension box that fits over the recirc intake and contains an...

I *wish* I was a pensioner. That's hilarious. I'm a lot of things, and SOB isn't the least of them. Sadly retired ain't one of em. Helping vs. Hand Holding. Safety concerns may at times be delivered in a condescending tone. To remove the tone robs the speaker of a portion of the message. That...

Medic! Someone get this fella a Tylenol. He's having a fever dream over here! 👀

Oh boy. This is an air brake vehicle and you're going to want to get familiar with air brake systems and parts, and frankly it sounds like a lot more mechanical concepts to effectively own, operate, and avoid break-downs, etc. The air system on these trucks runs a LOT of stuff and is one of...

Just replace the fuel hoses - they are rotten and sucking air. This is real common on surplus FMTV's.

Like I said - get an ECM off ebay and send it to me. You are encountering the problem everyone else encounters - no one but the folks in our community understand our needs.

The 🤦‍♂️ part is that the canvas cover is probably worth more than all the rest of that stuff and is easier to ship. :poop:

There's a glut of them available from overland builds and they are tremendously heavy, awkward, and expensive to transport so the reality is that you will be lucky to find someone that will take it off your hands and accept the scrap value for their effort. Scrap steel isn't all that valuable so...