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Here's another option - they market these things as tent air conditioners. The unit sits "outside", with two 4" hoses coming into the tent. It looks like they might even be fairly weather tight: ClimateRight - CR-2550 Mini

Gunfreak is 100% right - contact Tom at Alfa Heaven. He is a great guy who knows GMCs like no one else - if you follow his advice, you won't go wrong. If you still have the wire numbers on the dash panel wiring, you can match them up to the diagram Gunfreak is sending you fairly easily.

Remember, Murphy's law governs every repair you do. I installed a battery disconnect in the ground lead on my '135, and since I always parked it with the switch OFF, that solved the question. Back when I used to work on railroad equipment, we had to be very careful to have the welder's ground...

If they cut the wires, you can repair them fairly easily. Considering the age of the wiring, you might want to plan on a future rewiring of the entire truck, though. You can do a quick patch job using commercial bullet-type male/female connectors that you can buy from NAPA. These aren't the...

When I've seen this done, I think they just tracked down a distributor used on the civilian version of the 216 engine. Add new plug wires and the correct civilian plugs and you should be OK

I agree. Replace the fuel pump and the coil. Anotehr problem is that these trucks have problems with fuel percolation - that's when the fuel in your gas line between the pump and the carb gets too hot. It's not vapor lock, it's a fuel line problem. The cure is to be sure that the shield between...

Rivnuts come in two varieties - ribbed and plain. Since the plain are the cheapest, they are the ones most often seen on MIL equipment. If you ever use any, there is a fine line between too loose, and too tight. If they are over tightened during installation, they can deflect to the point that...

If you really want CARC, check with Sherwin Williams, or Milspray. Milspray offers a single-component "restoration" CARC that's water based. It can ship without a HAZMAT surcharge. You will also need water based epoxy primer to ensure that the Milspray bonds to the surface. The Milspray comes...

If the holes are about 1/2" in diameter, and are about 3" on center, they may be for a ring mount for a cab-mounted machine gun. There would be one set on each side of the rear of the cab, close to the corners.

APM215 -- how are you slinging the unit to pull the truck? I don't see a drawbar sling, and nothing around the car body w/ spreader

If you take a close look at the outside of the shelter, you will find rivets that hold the sides to the reinforcing Hat Channel. These rivets run down both sides of the channel, about 2 - 21/2" as I recall. The center line of the channel rows are on 19" centers - those 19" centers are where you...

One trick to remember whenever you are restoring a GMC or a Dodge is that many of the engine parts are civilian. When I needed parts, I'd go to NAPA and look for the engine and the year. If their book didn't go back as far as I needed, I'd look for the most common part number that was close to...

I haven't heard the name Bob Kettler in years - he was about the best resource there was for anyone rebuilding a GMC. He could be a cranky SOB, but he knew his stuff. When he got to know you, he'd ship out the parts when you called him, and let you follow up with a check. Just before he...

Iif they stole a jeep, they may have previous experience stealing cars - then I'd worry about the jeep being resold to a stolen car "broker" and winding up in Europe, or else winding up in pieces at a chop shop. Unfortunately, a WWII jeep is too recognizable to just resell

The side vents are pretty useless unless you have a ground mounted Environmental Control Unit (air conditioner). The ECUs had 12" hose connecting them to an adapter to match the round hose to the rectangular shelter vents. I've seen the vents cut out and replaced by a window, but be careful -...

If anyone needs some of the aluminum extrusions used for the radio racks, drop me a note - I won't be using most of the "hat" channels that were in my S-250

Most of the S-250's were used for radios, but they were reworked by using outfits as needed - During their heyday in Vietnam, no one was going to throw a shelter away that was rain tight, and after the Vietnam war, they were still too useful to be thrown away. I've seen a row of 10-15 of them...

I do announcing for various events, and I use commo wire reels to hold my speaker cables (about 1000+ ft of Type SO cable). I tried using the motor on my reeling machine, and it was too hard to control for what I needed - I removed the motor and just use the crank. That way, I can spool up a...

Exhaust manifolds and mufflers are hen's teeth on these trucks. A friend of mine did his, and would up building a muffler from the closest commercial muffler he could track down. NEVER throw away an old exhaust manifold - it might be repairable by someone who is more desperate than you are. I...

Jones is right - use a Cat to bust it loose. If you're on pavement, the grousers will slip umless you put scrap lumber or plywood under the treads - I used to have this problem when we had to re-rail a de-railed locomotive inside the shop---when we started pulling, the drawbar force would swing...