Military H-1 Hummvee

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   / Military H-1 Hummvee #1  

Hay Dude

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Does anyone OWN a retired military Hummer?

If you drove one 20 years ago, I appreciate that, or your neighbor has one that's cool, but

I'm looking for current owners on TBN
 
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   / Military H-1 Hummvee #2  
Hope you have a full-time mechanic on staff if you get one. I sat on the ESD board for a volunteer FD. They had 2 of them given to them by the Texas Forestry Service to use as brush trucks. After 12 months they belonged to the FD. Ended up getting rid of them and went to a 4500 4X4 cab and chassis with a flatbed.

Uncomfortable to drive or ride in. They were continuous maintenance problems, more downtime than uptime. They are 24V unless converted. Parts are hard to come by. Ended up using 1 as a parts vehicle to keep the other one running. Now that the military is getting away from them, I imagine they will flood the surplus market.
 
   / Military H-1 Hummvee #5  
Does anyone OWN a retired military Hummer?
If you drove one 20 years ago, I appreciate that, or your neighbor has one that's cool, but I'm
Looking for current owners on TBN
A couple of things come to mind for your research. All military-developed equipment is built to standards that satisfy a tactical mission requirement. Because of that (and sometimes politics), you will find some expensive parts and capabilities never even considered in civilian use. Which may or may not be expensive to keep up.

As I remember (which is more problematic with time), the engine and transmission are GM: think they put the older 6.2 - 6.5 liter diesel engine up front (which is probably fine, but it did not fare as well for farmers' pick-ups). The old and reliable Turbo Hydramatic 400 was the transmission.

The condition and use of these machines is important. They were routinely run heavy and hot in tactical environments, which necessitated larger versions of the engine and turbocharging. (read sandbags, armor, heat, and heavy). Coolers helped, but many mods were made to try to keep up. All that means is be careful which one you're looking at and where it was in service. Watch for salt water corrosion also.

Additionally, which version are you looking at? The services have all sorts of mods to the HMMWV, depending on end use. Some can mean problems and increased costs to repair.

A suggestion: look up the "Steel Soldiers" website. Think you might find lots of folks there who own, operate, and repair this end item. And some good TM sources.

In my opinion, naturally. Best of luck.
 
   / Military H-1 Hummvee #6  
Spent alot of time working on the 1st gen hummers.

If you get one, replace the injection pump with a civilian one. Military dumbed down for speed control.

We replaced ours for selective vehicles. Big difference.

Remove the front drive shaft or find a way to make it 2wd/4wd. Front end robs alot of power.

This is on the 6.2 models. Naturally aspirated models suck no matter what
 
   / Military H-1 Hummvee #7  
Spent alot of time working on the 1st gen hummers.

If you get one, replace the injection pump with a civilian one. Military dumbed down for speed control.

We replaced ours for selective vehicles. Big difference.

Remove the front drive shaft or find a way to make it 2wd/4wd. Front end robs alot of power.

This is on the 6.2 models. Naturally aspirated models suck no matter what
My old employer had 4 of the those Humvees. Most of the time they were broke down needing something to fix. The engine and transmission is in the middle of the vehicle. And it overheats too often.

If would be smarter to look at the retired MACK Truck Defense vehicles since they use the SAME engines as their semis. Thus, parts are better to find and the engines run well over a million miles before overhaul.

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   / Military H-1 Hummvee #8  
I think any military vehicle is better than the 1st gen hummers
 
   / Military H-1 Hummvee #9  
My old employer had 4 of the those Humvees. Most of the time they were broke down needing something to fix. The engine and transmission is in the middle of the vehicle. And it overheats too often.

If would be smarter to look at the retired MACK Truck Defense vehicles since they use the SAME engines as their semis. Thus, parts are better to find and the engines run well over a million miles before overhaul.

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View attachment 1690747
Fan switch can be an issue. The whole set up is wrong ( 6.2' s) bad engine, decent transmission. Love the running gear. Put the diffs, geared hubs, etc on a older blazer ......ultimate offroad machine with that clearance
 
   / Military H-1 Hummvee #10  
My old employer had 4 of the those Humvees. Most of the time they were broke down needing something to fix. The engine and transmission is in the middle of the vehicle. And it overheats too often.

If would be smarter to look at the retired MACK Truck Defense vehicles since they use the SAME engines as their semis. Thus, parts are better to find and the engines run well over a million miles before overhaul.

View attachment 1690745


View attachment 1690746


View attachment 1690747
Not sure Mack produced an accepted standard light tactical vehicle as a replacement for the HMMWV (believe Mack does produce some heavier stuff for the services though). The replacement for the HMMWV is the Joint Light Tactical Vehicle (JLTV) from Oshkosh (which is much different from the HMMWV, although mission deficiencies in it drove a lot of design changes that resulted in the JLTV).

The JLTV is apparently just being fielded over the past few years to the services. I would think it would be some time before such vehicles would be surplused. Even so, doubt many folks would find an economical use for the JLTV in civilian use though.

Your point about some drivetrain commonality is supported by the fact that Allison supplies the transmission for the JLTV and GM Duramax supplies the engine. Don't know what the Allison build is for this contract, but the 6.6L Duramax looks to be the same "basic" engine that GM puts in its trucks. However, Gale Banks did the engineering on the powerplant for DOD, using the 6.6L as the basis. Be interesting to see if the Duramax block and other stuff is similar to civilian or upgraded for military use... And calling that a "light" vehicle is optimistic - GVWR on the JLTV is 22,500 lbs...
 
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