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It is all about the speed in my opinion. I have 3 square bodies on the road everyday. The Blue Bomber USAF Suburban has a speedometer which is right on according to GPS and the interstate mile markers. 6.2/TH400 if I keep it at 60-62 on the interstate full tank, as in liquid fuel sitting...

It is amazing how the two of us who live below 500 feet are both building trucks with engines that will let us get to and enjoy the mountains. While bringing all our junk along at the fastest speed we can possibly go. Yes, the Navistar 506 block is the one you want. Better metal for the...

Rich, that is a P400, not a 6500. the P400 has the built in stud girdle and a cast aluminum oil pan. You already have a lift on your M1009 so a different cross member would be needed to make it fit your truck. Most people need to do the lift too. Give the seller a call or write to see what...

You want the DB2 with the .31" plungers. They came on the 6.5. Here is a great thread about the pump numbers. I can't find it to link it right now. Diesel Page: db2-4911-the magic, the myth, the mystery Search for that over there and you will understand the pumps better.

I went looking for this thread to put down something about front wheel bearings. I didn't realize it has been more than 2 years since anything has been written though. Colton has been daily driving it for almost 2 years now. He and a friend took it on a 1200 mile spring break mountain bike...

The hot set up for the Banks manifold. Which for a square body is probably the best manifold to use. Is to put the turbo Banks sold for the 6.9/7.3 Ford diesels on it. It is bigger, has a waste gate and spools up from idle. There are several online threads and stories about doing this to a...

I agree, the end sash guides in the tail gate really make a huge difference. I replaced mine a few years ago. My wife taking the M1009 shopping and cranking the crank really tight after putting the window up I think is what kills my handles. Those of you who are married know there is only so...

That is what I plan to do Rich. I just wanted to see if I could make it so the J code intake would fit the heads with the 60° intake bolts. Now that I know it does and can be bolted on. I will refine what I have. It is a dry intake that really only is going to be required to hold in about...

The adaptor to go from a 1987 TH400 to a NP208 is the exact same part number as the same part going from a 1990 TH400 to a NP241. If anybody was curious. Since the head gaskets for some reason on the GEP engine were blocking all water flow to the heads. The heads were warped as a result. The...

The civilian DB2 6.5 engines did have the fast idle solenoid. Surplus 6.2 engines I have messed with had places to screw in the solenoid, but most solenoids stayed with the vehicle when the engines were swapped. I have a GEP 6.5 a few feet away right now. The throttle bracket looks like it...

That is a new one, motor mounts pinching off lift pump supply. Thanks for sharing and glad you got it running.

Do you by chance have the electronic DB4 IP instead of the all mechanical DB2 IP? Or is this a surplus 6.5 going into a M1009? If surplus, just swap the tops for the IP. Swap the throttle bracket as well since the HMMWV one is shorter and you will get about 30% throttle with the M1009...

Kenny, That is the best explanation for the real spoiler I have found yet. Thank you. We pulled it off and I really don't plan to put it back on. Making the mounting holes water proof should be fun though. I did manage to hot wire the front windows on the '90. Now it is water tight. We will...

The 241 was full of fluid when I pulled the drain plug. The 400 was full to the empty dip stick hole with mostly water. I left it hanging like in the picture over night with a 1 gallon drip pain under it. This morning almost a gallon of red fluid had dripped out. I think the 241 was full and not...

Went "fishing" this afternoon. Caught a TH400/VSS NP241 from one of the square bodies that came from Joe. Colton came home just as I had it hanging and said I looked like one of those fish catch pictures.

There are two different coolers in the radiator. The solid metal lines for the transmission on the passenger side and the rubber/aluminum lines from the back of the engine up the drivers side inner fender and across the radiator for the engine oil cooler. Onviously, one leaks red and the other...

Mine has a "happy speed" of 48-52 mph when it is over 100° out. Several years ago I drove 130 miles to Houston, hooked up to a motor home and flat towed that thing home. 38-42 was the "happy speed" for that trip based on keeping the temp gauge below 200°. It would run as fast as I wanted...

Youtube is how I have to go about it every time too. Once I see it, I remember. Then a year or so later I am lost again.

Yes it has the base that bolts to the tail gate and the hinged part too. You will have to swap out the lock cylinder yourself. Just realize they are all the same terrible quality GM started with 30 years ago. I am on #4 in 6 years with my M1009.

I have my valve closed and it is still hard to start with a hot engine on a hot day. One of our members from Spain put up some pictures of Gasser trucks in service with his country. All of the hood side panels were removed to help underhood heat and he claimed they still had issues getting...