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There is a 2.5" connector just in front of the shifter that has a large, multi-pin connector in it where the STE/ICE diagnostic set plugs into the vehicle. The pins in the connector are lettered and the S & T pins are just 2 of the pins in that connector. If you jumper them then the truck will...

There are a number of battery warmers out there made specifically for auto and truck batteries that plug into 110 volt sockets. There's even one that's a standard GM OEM part...

Take a good look at all of your battery cables and make sure you don't have a loose or corroded connection somewhere. That connection in the transmission tunnel gets a lot of crap and corrosion especially in cold areas like Maryland. That would explain why your batteries look good but won't...

If your not familiar with using a tone wand for wire tracing here's a link to a you tube video on how to use one. These things used to be called a fox and hound but the principle is the same. This is much easier than trying to chase wires with a multimeter. Harbor Freight has one for about...

The MX-6707 is rated for 70 watts. Get a good VSWR meter and adjust the frequency knob for the best forward/reflected power match with the lowest standing wave ratio.

If you ebay or google "quick release pins" you'll find them in almost every size and head style. I have used 3/8 x 1-1/4 pins for the lower feet for years and they allow you to remove and refit the radio decks in seconds. I use a 1/4 x 2" pin for my pintle lock. They are expensive new but...

The problem with connecting to the audio connectors on these radios is that you either have to have internal batteries or a second power cord for the amplifier power. The picture posted above is of one of the speakers I built and have for sale. I have 6 speakers ready to go that connect to the...

Get out your copy of the -20 manual and follow the troubleshooting flow chart for the cooling system. All of this has been covered and well documented in the manuals so that a semi-literate 18 year old Army private can fix complex systems like these. 99% of the troubles your going to have are...

If you want to build in a little higher rated MOSFET you could use these : P75NF75 STP75NF75 TO-220 MOSFET N-Ch 75 Volt 80 Amp. Just search this string to find them. One other problem I've noticed in designs using MOSFETs is that designers tend to rely on the internal diode to provide...

Welcome to the skinned knuckles, blood donor club! Even with the engine partially disassembled you can run a compression test on the engine to see if there are problems there. Harbor Freight has a reasonably priced diesel compression test kit that won't break the bank and works well. As a...

When the original postings were done on the G503 site Lynch Hummer was selling those washers for $.54! I know because I bought a bag of them.

AMG sells shouldered washers that you can place over 3 or 4 of the wheel studs that will center the front wheel disc over the rear wheel half. This takes up the slack and is the reason AMG didn't feel it was necessary to use the tapered nuts. On a 12 blot wheel you need 3, om a 24 bolt wheel...

That's a pretty standard automotive wheel puller. What the OMS shops use in a puller with a "C" shaped piece that looks like an overgrown retaining ring that grabs the wheel below the plastic hub. I mounted a black Hummer leather wrapped wheel on mine and it's much more confortable than the...

Wirefox, if your using 85# as your wheel torque spec then your torquing your wheels to the old 8 bolt bias tire spec. Doing an search online for HMMWV wheel torque specs takes you to several sites that specify 110# for the 12 bolt wheels with radial tires but I just took a look in the new TM...

An issue I had with the 12 bolt wheels was that I wasn't torquing them properly when I changed tires. I used a long 1/2" breaker bar and tightened them to where I thought they felt tight. What was happening was I'd be driving down the road and all the sudden I'd hear what sounded like a pistol...

There are two types of expanding foam, open cell and closed cell. Closed cell foams don't retain water like the open cell types do.

If you go back and do some more investigation on this subject you'll find that this isn't a new issue at all and has been discussed numerous times. We always used to tell prospective buyers to get on a creeper and roll down the length of the frame tapping on it with a hammer. The frames are...

Sintorion, it's time to move your skepticism to greener pastures. There's a whole would of Republicans and Democrats who need your attention far more than we do here on the SS Forums. The whole world of HMMWVs is one of speculation on buying something with an unknown history in most cases and...

In '69 that probably would have been one of the MRC-83 series sets for a BC. They tried to make them talk in HF, VHF, and UHF using a mishmash of available radios like the Collins 618Ts for HF, VRC-12 for VHF, and ARCs for UHF. Monsters that needed a separate generator in it's own trailer.

Daniels is just one manufacturer of suitable tools for these connectors. Buchanan is another popular manufacturer and are usually a lot cheaper on the surplus marked. Glenair is another. And if you really want to go all out you can go Deutsch.