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They have been sitting this long, another several months won't hurt a bit. They will understand man, the GMC's will understand. 8):driver:

Yes, the forum is full of awesome people. It's amazing to think so much can from just a truck but my GMC and this forum is responsible for me making some darn good friends even if they do live a little out of the way. It is just incredible what can be accomplished through a keyboard. I try not...

I never bothered noticing the 302 oil filter canister. How does it hook up to the engine? Plain hydraulic fittings? You've got a few hundred bucks in parts there.

Well Gunfreak says poop on you. I did not get my Boyce truck dash pics. :evil:

I did the same thing to mine when I got it. You might be a redneck if you have to powerwash the inside of your cab. :D

No, any standard pickup truck batteries will do. It's just a little 302 with a 6:1 compression. 24V also spins them over quuuuick.

If your a good welder you can also cut open the bottom off the tank off after properly airing it out. Then power wash or sand blast the insides and weld the bottom back on. Saw it done on a few WWII MV trucks. Test with water for leaks and repair as necessary.

The bottom of my tank has a galvanized type finish. The rest of the tank has flash rusting on the walls but nothing i'm concerned over. I am running a 2 micron diesel racor filter on the 6.2.

Custom dash too? Don't give me any ideas. I don't want to see it. Kidding. I want to see it. I need to see it.

Wow! We did not know Boyce ever made a custom front clip/cab for the GMC's. I thought they only made them for the M35's. Very cool, some more pics of the Boyce cab if you can. I did not recognize the truck at all.

Genius Dave, the engine video is from 2010. :cookoo:

:ditto::nothingfunny: OF knows his beans. :beer:

That is odd. Mine just say's M220 638. (I'd love to return it to 220 status someday)

Is your M220's serial number 711? Mine is also a 54 and is serial 638. Really makes you realize how few GMC were made compared to the M35's.

The brake system is pretty simple. When people think air over hydraulic they think of an overly complex system with a crap load of hoses and lines. In reality most of the large steel hard lines running in the frame are for the chassis vent system which is basically a closed loop that connects...

Forgot to add, Boyce did thousands of these power swaps over the years. Give them a call and speak with any shop guy and he'll tell you anything you need to know. Ask lots of questions on here too! Lots of guys on here who know more about the GMC's than people could have dreamed about years...

Great find! I am loving truck #2. It looks like they retained the 302 too, so that is very cool. What you have here is a very sound albeit a little bit jerry rigged drivetrain swap. NDT has it correct in that the tranny is a Clark 5 speed and the transfer is a Banjo 2 speed unit both from a...