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One more cool HMMWV accessory to look for.

I left the springs attached. See post 100: preventable rear suspension failure | Page 5 | SteelSoldiers

Do you see the keyhole? Stick your lock ring tool in there and pry the ring up. Once the ring is started out of the recess, use your tire tools to continue to pry the ring up and off.

Where are the nuts?? Highly unusual that the nuts are no longer threaded on.

Ugh. Show us what the #5 rod bolts look like. This looks a lot like classical "threw a rod". Motor is so clean you can eat off it :(

Welcome. That thing in your picture is the throttle servo that was used to control engine speed when the PTO generator was installed. You can remove it.

That is a good question. The manifolds that are available ($$$) were surplussed out back in the GL days, which is like 10 years ago. Already getting old for O rings. And then figure Uncle had them on the shelf for ? years. So that opens up the “R Racing” rebuild scenario which appears to be...

OMG. I don't think you have a blown head gasket initially, (might be now), I think a huge crack opened up in the cylinder wall. All the parts you want to reuse need to be checked for damage and straightness. Never heard of this failure mode on a 6.5 myself. I would be very upset after...

Rebuilding the manifold is no simple task: CAT 7155 Manifold rebuild | SteelSoldiers Mine is doing the exact same thing.

Thanks for documenting this. Talk about a lost art. At some point in this thread can you hypothesize what reduction unit components get stuck together when you have the dreaded lockup in high range.

Is your block GM or Navistar? I believe GM quit casting the 6.5 right around then.

Wanted to document this as it applies to 6.2, 6.5 engines in both CUCVs and HMMWVs. After sitting for a few months, my 6.5 TD with DB4 electronic injection would crank but not start. As we know, these IDI engines need fuel, compression, and glow to start. I knew mechanically the engine is...

Follow steps pictured.

While we are on the topic of ancient Armasafes, I JUST had a 2011 battery die after around 8 years on the maintainer. It was fine until one day the maintainer said "load present" and sure enough the battery case was warm. Voltage dropped off after a day off the maintainer. Bye old friend.

Did you click on the link, go to post 8, open supplement 7, and read page 49 about the 12 and 24 volt circuitry that is needed for the TCM to come to life?

Obtain an AGM maintainer, connect it to the dead battery. The maintainer will say "Battery is flatlined". Obtain a GOOD agm battery and connect the two batteries IN PARALLEL. (positive to positive, negative to negative). Reconnect the maintainer. This time the maintainer will see voltage...

Hello and welcome. This issue comes up a lot and most of the time, the TCM is not the problem. Wiring in and around the battery box is. Here is a thread that contains the 4L80E bible for HMMWVs, "supplement 7" M1123 transmission | SteelSoldiers

Newer Armasafes can be brought back to life. It’s a weeks long process.

I believe the rear rear on the 6x6 is the same as the rear on a 4x4. Someone who has switched their 1078 to “high speed gears” probably has the old pumpkin sitting around.

I believe these telehandlers are a militarized version of the Skytrak 6042 or 6036. I would poke my head into a United Rentals repair shop and ask if any mechanics there need beer money, they should be very familiar with these fork lifts.