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The Bendix AD9 is cheaper with many Chinese knock offs on the market as well. It has a lower SCFM rating, and only a single desiccant type. Servicing it will require removing if from the truck and is at least a 45 minute to 1 hour job. The PURest dryer has a five stage desiccant cartridge, has...

Get one of these - they are surplus units that are brand new but were sent to surplus due to having the older 150 psi relief valve. These come with the mounting bracket that matches the holes in your frame. It's a super easy swap...

Head rebuild kit is a Haldex RNT26 https://www.finditparts.com/products/370307/haldex-rnt26

You have a picture? The oil line parts are all just off the shelf AN hardware AFAIK.

Yep. With these trucks you MUST re-do every ground point if you don't want to be chasing electrical gremlins forever. And while you're at that clean all the power connections as well. #1 task for a new FMTV owner IMO is to spend a week addressing every electrical connection and checking/changing...

You should at least rebuild the compressor cylinder head. Without exception, EVERY SINGLE ONE of these FMTV Haldex compressors I have opened up has broken exhaust valve springs. I came to this realization when the disc in one of my exhaust valves broke in half and slipped down into the cylinder...

It's next to the piston return springs, the muffler bearings, and the spare Jesus nuts (always carry a spare). I find that you can also substitute turbo encabulator fluid - which is chemically compatible with all blinker applications it's just more highly refined and you can dramatically...

Won't hurt the relays but doesn't prove the contacts inside them are any good. Just indicates they are being triggered to close (open for the NC contacts). Make sure you have 5 pin relays where you need them, and 4 pin relays only in locations that don't have the NC contact (87A) populated in...

What you are hearing under the PDP when you shut off the truck is the fan solenoid de-energizing and dumping the air from the pneumatic line that disengages the fan clutch. The CTIS you will hear after you power on the truck assuming there is enough air in the wet tank to open the brake...

Is the transmission display lit up and does it show N? If the trans computer doesn't power up and go to N it will not enable to starter via the relays it controls.

Could be bits of deteriorated old fuel lines maybe? From the inner lining? Good thing you replaced them. I haven't run across anything that looked like that in the fuel system on these trucks. Maybe someone used some gasket maker on the fuel filter gasket?

I wrenched on M35's in the Motorpool and was universally ALWAYS required to drive the damn things due to a perpetual lack of enough soldiers that knew how to drive a manual transmission. Well acquainted with those turds as well as 800 and 900 series trucks. The LMTV's are not over-complicated...

That's wild! I haven't seen that before. I imagine soldiers did something stupid to cause that. Ran into the cab with another truck while it was lifted perhaps? I'm not seeing how that could happen with the cab in the down position. I can only guess that the cab was lifted while the truck was...

That's awesome. And useful. And speaks to the actuators ability to lift relatively lightweight objects for an application that doesn't already have a tested and implemented and simpler solution. I don't see the value in re-designing the tire carrier unless you are going to move the tire to gain...

Needlessly over-complicated IMO and while some of these actuators might be close in terms of performance, they are bulky, expensive, and complex in terms of moving parts. The hydraulics have a straightforward manual override scheme, are simple, and a LOT more powerful. I guess I just don't see...

You open the vent to expel water from the separator. That is supposed to be done weekly IIRC. For priming you don't need to open the vent. Ron is using a filter without the separator it would appear. Our trucks (3126/C7 anyway) have two "filter" heads but the one with the primer has the water...

Definitely requires patience. I've seen two for sale since I bought mine in 2021. When they do come up for sale there's actually not that many buyers lining up because most buyers are first-time buyers and don't understand the value or the high asking price so they pass them up for cheaper A0...

Wouldn't it be convenient if (some of) those unit just needed an option pin change that forces a reload of the option pin information from ROM to get them working again? I suppose that Dana and the Army don't want to mess with that at the unit level and it may indicate more than corrupt data in...

Changing the fuel filters it typically doesn't take more than 20-30 pumps. Might have to do it a second time if it doesn't stay running. They prime pretty quickly in my experience.

RV slide outs don't require significant force. They are not lifting anything against gravity. Just sliding something sideways on greased tracks. Hydraulics are much simpler and more robust. No motors or gears. And the factory hydraulics can move quite fast with the right electric pump.