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My M0179 A1R with ECO hubs gets a little over 10 mpg if you drive careful with cruise control (yes it has electronic cruise control through the CAT computer) and kept to a reasonable speed. The 7.2 Liter C7 CAT engine runs about 30psi through a Borg Warner S300. The FMTV's have tons of support...

900 series trucks were damn good. But can't match the FMTV / ECO hub combo for fuel economy. But damn I do love me a 916A3 Freightliner..... The 900 series trucks don't have any significant edge in terms of parts availability to the FMTV - there's plusses and minuses in both categories. The...

M35's are great - for parades. And if you want the engine to last any significant amount of time you will run primarily diesel in it - all "other" fuels were emergency authorization only. I worked on and drove a lot of those turds (52D Motorpool vet) and the FMTV replaced it for GREAT reasons...

If the pressure is up and the system isn't activating you can just insert a jumper wire between the two pins on the harness connector for the pressure switch at the wet tank and that will fool the controller into beginning it's pressure check/inflate/deflate cycle. Most of the time it's a wet...

Well that's interesting. Looks like poor connections at the alternator may have caused excessive heat and a fire or the alternator was short circuited or something. You can check the alternator carefully with the troubleshooting guide but I would expect is is probably toast. Before you attempt...

Aftermarket throttle controllers are "piggyback" devices that attempt to fool the ECM into believing the input has changed in some different way than reality. Be very careful with such things. Not only can they have unintended consequences, but the prosecution will crucify you in court if you...

The only time I've seen a seal messed up is from improper installation of the hub onto the spindle. And usually they have no idea till it's in operation. Seal driver won't help with that. Not opposed to them - but if it's more than arms reach away I'm not going to bother for this application...

What you need to pay attention to is lifting the heavy hub onto the spindle so you don't cut any of the seals. If you really want to play engineering then design a fixture for holding the hub and centering it on the spindle as it's being installed. I've seen lots of 18 year old kids do this...

Yup. Don't need any seal drivers. This is an Army truck not a Space Shuttle. Whack it in with a hammer and be done with it. CTIS seals can be installed with a large flat blade screwdriver - just keep to the edge of the seal so you don't damage it. I've done enough 3D printing to have put...

Ok! Will do that tomorrow and report back their answer!

Most of the failures are due to both over-filling (common problem in the Army - aerated fluid compromises lubrication properties) and the tendency for people to change the fluid in response to transmission behavioral issues that turn out to be transmission failures in progress - they then...

I can't find a Champion radiator listed that's even close to the stock CUCV radiator size. The largest radiator they list is a 33" wide unit. The CUCV radiator is 41" wide. Unless I'm missing something on their web site.....

https://www.jegs.com/i/JEGS/555/511457/10002/-1 Picked up a new problem child - there's a giant hole in the radiator and someone soldered up about three rows of tubes. So I'm looking at options - this is the only one with pretty detailed pictures and appears to have the trans cooler, engine oil...

The crank circuit will not operate till the transmission controller powers up and engage the neutral start circuit (confirming the transmission is in neutral and it is safe to start) that allows the PDP circuits to pass power to the starter solenoids. My guess is they couldn't figure out this...

I find it unlikely that a qualified Reserve technician can't figure out the schematics for the various models in question. It's all readily available in EMS-NG on his MSD3 or MSD4. I find it more likely that he doesn't know what to do with this information in terms of how to adapt the C7 to the...

Everyone here understands what you are trying to say - and it WOULD NOT WORK. What you are proposing locks the hub to the outer gear, which then is locked to the inner gear via the planetaries, which in turn is locked to the AXLE TUBE. This renders the entire system immovable. In other words IT...

Yet again you show in painful clarity that you fail to understand what's happening in the hubs. 🤦‍♂️ Someone please help me out with explaining this. I've lost the will.....

You asked a question - when it was explained this would be very difficult by two members you made assertions of it's simplicity and further assumptions. By doubling down on the comment it was clear I needed to explain in further detail what disastrous consequences would befall the person that...

You don't understand how the planetary system works. You can't just couple the outer gear to the hub cover - you must also decouple the inner gear from the splined axle tube. If you don't you will IMMEDIATELY destroy parts inside the hub. Remember that the axle is spinning at twice the speed of...

All of the 3126 and C7 maps are 860 ft/lbs of torque. The C7 370 HP map is 931 ft/lbs You will definitely run out of traction first. I don't believe the trucks are even rated for a 45 degree slope - probably would encounter engine lubrication problems approaching those kinds of angles.