I am just curious how you use your HMMWV? Did you take it cross country or overland adventure or something like that? My only concern is maintenance and service. If it broke down on the side of the road, where do you find a repair shop? I usually fix or do thing myself at home. However, I cannot carry parts / tools with me everything. I would need to find a repair shop in case I need one. Will GM / Chevy dealers fix the HMMWV? Since the HMMWV uses GM engine and Allison transmission.
The reason I ask, I am planning to make a trip to Mt. Rushmore and Yellow Stone from MD. I have to decide to take either a Raptor or the HMMWV with M1102 trailer.
I have had my humvee for a year and a half now. Put around 15k on it since I got it. It originally had 67k on it, with the 6.2 being rebuilt in 20013 (odd I know).
Since I got mine I've been on two 500 mile road trips. One trip I later found out I did with one hub completely full of water. Those things are incredibly hard to break (unless your spindle comes flying off lol... bluehummer)
A couple times a week I do 80 mile trips out to off road locations and such. More often I go 50 miles out to my local forested area, the trails are harsh and the truck makes it there, through, and back.
Recently I did a backcountry discovery route, only a 100 mile section. Slammed it out in 8 hours, the road was rediculously bumpy, and with our stiff suspensions on these trucks it doesnt make it any better. After that I did a 250 mile road trip home. Zero problems the entire way (except for a half shaft acting up, unrelated though), except a door deciding to shake its way down and required readjustment to get it to close properly.
A couple pieces of advice I have found:
1. At the very minimum take a full rachet/wrench toolkit with you. Half shaft failures, door adjustments, loose components, all can be fixed on the go.
2. If your truck is having some fluid issues with mystery or even non mystery leaking, simply do a patch (or just fix it) then bring extra fluid with you. On long trips I never leave home without a 5 gallon jug of water, you can move the vehicle without power steering or brakes, but an overheating engine is a problem.
3. Longer trips I would take a spare tire, jack kit, recovery gear (although that should already be in there), and spare parts of anything you think might fail (like a half shaft, or a light bulb)
Finally I'd like to say that if your truck came in with little to no problems, you probably won't have any major issues come up within a couple months of owning it. Its really funny cause all the major problems I've had, have happened close to home or a shop. Half shaft failure happened 10 minutes from my house. Transmission internal harness failure (limp mode for 4l80e) happened 5 minutes away from the shop that installed it. AC compressor seized up in my driveway. Driveshaft U joint failure happened 7 miles from the shop that installed it.
I am always pleasantly surprised at the durability of these trucks. Now do NOT get this confused with longevity. The two terms can be used in conjunction on production vehicles but not humvees. The parts on our trucks are very durable, designed to take a harsh beating in harsh environments. But the con is they don't last as long as production car parts. Do PMCS after every trip, **** just check crap under the hood when you have spare time on trips. Will save you from maybe a spindle coming loose or a hydraulic hose coming off.