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Considering installing a coolant filter head on our M1123 after seeing how filthy the system was, in an attempt to keep the new heater core and radiator in better shape long term. Is there a consensus on which hoses to intercept for such a setup? Is there any advantage or disadvantage to using...

Has anyone found an LED equivalent for the 1683 lamps used in the ambulance backup light assembly?

Trying to work through how to wire in some Anderson Power Poles to power a portable shack in a box style ham/gmrs radio setup. I’ve heard the generally accepted maximum 12V draw off the rear battery is about 10amps so that’s out of the question. The box will have its own internal battery and...

In the process of installing the Black Dog Customs reverse light harness activated by a switch added to the shifter assembly to power some round ambulance style reverse lights, but would also like to be able to manually activate the reverse lights via switch. I've seen a diagram somewhere...

The seal on our M1123 doghouse was rotted out so I repainted the fiberglass and installed a new seal. Now, for the life of me, and with all my weight pushing on the doghouse, I cannot get the latches at the top to grab. Is there a trick to getting them to seat properly after a seal replacement?

I purchased one of the hydraulic fan clutch elimination kits out of Canada a while back for our 1123 after having a clutch failure and leaky quick connect. Unfortunately, unlike the newer kits available from Black Dog and Retired War Horses, it came with no instructions, or advice on how to...

I could not find a TM or guide to replacing the rubber hood latch dogbones. The top looks pretty self explanatory with the pin and bushing, but wasn't sure about the bottom.

According to HPG, it appears a factory H1 AC condenser may mount up to the cooling stack on the HMMWV. Can anyone here confirm? Still trying to resolve how to install AC hidden in our center console without adding dual fender condensers. Options thus far: 1. Keep the radio rack and center...

Does anyone know if the Red Dot ProTecht diagnostic units can be added to older model Red Dot evaporators, or if they only work with certain models? Will Red Dot even provide literature on older units?

Has anyone here successfully installed this system? Any fitment issues, does it cool well, etc.? I posted a similar question on one of the Facebook forums about a year ago and all I heard was "the kit is crap" and "install is a pain" with no real data, photos, or backup for any of those...

Have a bad heater core on our 1123 and have been debating between replacing the entire core and blower assembly that HPG sells ($1,300 ouch!) or installing the Restomod Air kit…. Which is even more $$$! Have heard some love the Restomod kit and others hated it and told me it was junk. Looked...

The parts manual calls out 7/16-13 bolts for the outside of the geared hubs where you would mount CTIS covers or the rear brackets. See part 36 in the photo. I've misplaced some of ours and can find 7/16-14 all day long but haven't located any in 13 TPI. Was this a HMMWV specific specialty...

Looking into purchasing an M35A2 to set up as a private brush/wildland truck for ranch use. The fire apparatus ideally will be built on a skid and be self contained and placed into the bed via forklift when needed. We will not be bobbing the truck, and would like to maintain registration and...

I know many may claim hogwash, but I've legitimately been through two factory correct mechanical lift pumps from a reputable HMMWV parts supplier in 2 years. An acquaintance who owns ALOT of heavy diesel equipment says he suspects the ultra low sulfur diesel is degrading the diaphragm in the...

I’ve seen where some of you have installed fuel pressure gauges on the top port of the filter housing, and have figured out how to do that, but I’ve also seen photos of some secondary oil pressure gauges installed right behind the drivers side valve cover. Has anyone here done that, and can...

Other than Hummer Parts Guy, are there any other reputable sources for new voltage regulators for a 200amp truck?

What are the best years and models of deuce based water trucks out there? Looking to rig up our own private brush truck of sorts to use in case of fire on a large ranch. Any good sources for quality trucks you guys recommend? Thanks

After removing the ring terminals for the radio tray power cable from the positive and ground stud terminals between the frame and the tunnel, I don't think I'm getting a good connection anymore. Both were covered in a thick black material that had skinned over like silicone on the outside, but...

The radiator on my 1123 is full of sludge and rust. The lower tube on my truck was not stainless and had disintegrated from the inside out which was hard to tell since it was entirely covered in undercoating. Since I’m already installing new hoses, a water pump, and replacing my leaking...

I've heard several guys talk about the proper hose clamps and constant tension clamps for under hood hoses. Several on my truck are clearly some auto parts junk and I'd like to replace with the correct style clamps when I install all new hoses. Appreciate any advice you guys may have.