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Haven't forgotten about the york! Just been busy! I was wondering if anyone could turn out a quick steel slug for me though. Only needs to be 3/8" thick and must be exactly 1.257" in diameter.

Rebuild Kit For The M54/M809 5 Ton Truck Air Pack, 8333870 You will need this kit and 2 of the control valve piston seals mentioned above, from Brake Systems Inc in Oregon.

This is the 2nd time typing this out since I accidentally deleted it. So bear with the lack of enthusiasm in information listed below. The M211 and M220 trucks use a Bendix AIR PAK model # 2500685 It is unknown if this is the same model used on M135's. For those who are installing 5 ton...

Haha, no problem fabricating what I need. I can do it all, already shoehorned in the 6.2L Diesel, 700r4, Np231, shortened the Np231 rear output myself, made a custom oil seal housing, moved the factory sprag transfer back 5". Still left to do is fab up alternator bracket, York bracket, custom...

You are spot on 135gmc, they make them custom for Oasis Mfg, so it's on an as needed basis which keeps the cost high. I spoke with an engineer at Oasis Mfg today and was told the pistons are the same. The only difference for the "special" ones being that York machines the top compression ring...

Original deuce compressor has pitted cylinders and needs bearings, plus a new flywheel with a smaller belt groove. Replacements are $275 with postage. I thought a York would work well because they are lightweight, cheap and bullet proof. I've contacted Oasis air again to request additional...

Dang, I know what i'm doin with my rotted spare now.............

York is a brand for a line of AC compressors off many 80's Volvo cars and 60's Mustang's as well as other Ford's.

These are AC compressors where the system is normally recirculatory so blowby is not a problem. TO get around this, all the guys using them as on board air units are using coalescing filers to capture the oil, venting the crankcase to reduce pressure, plugging oil galley's, etc. None of it has...

:funny: DITO

I'm going through and have gone through a lot of the air system, it should be 99% air tight when finished.

Let me go pickup the socket I need today to get the rods out of the York 210 crankcase. Then I can mark them for orientation, remove the pistons, rings and take some measurements. You would be duplicating the existing ring groove. There's another guy I found on Youtube who said he'll do it for...

I would imagine few of our truck's have any wear in the differentials at all. They are built so god darn heavy duty and most GMC's never made it past 30,000 miles anyway. One of those things I don't think i'll have to worry about tearing into, ever. As far as gear oil goes, I would recommend...

I am looking for a guy with a lathe who can machine extra piston ring grooves on my York 210 compressor piston's. I would supply the ring's of course. This is for my M211 project. Pistons are around 2" in diameter and are aluminum. Course I never thought to check how much my local NAPA would...

DD, a static test would be fine! I did not think of that. And I agree whole heartedly that every deuce owner should time the lights to use his brakes as little as possible. It's just good practice. The reason I ask is because I was talking with the guys at Oasis Mfg who deals with the York 210...

I have a mission for a fellow GMC owner. I need to know approx how many braking applications one has before the air compressor governor kicks back on to recharge the air tank's, during stop and go normal city driving. The mission should be simple, just count the number of times the brake...

Normal maintenance parts are still easy to get, restoration parts such as new old stock seat cushions, covers, weatherstripping and other small bits are a lot harder to find than they were 10 years ago. Farmers exhausted nearly all the parts for these truck's throughout the 70's and into the...

This is a great write up I found while doing some searching today. Disassembly, no spin lockers installation, how some of the parts look, etc. Military_Axle_Swap_2

I'll say it again, let the paint cure 3 weeks before getting it wet.

Jesus, I am going to get mine magnafluxed while I have the D-shafts out. I reccomend everyone else do the same. Not cool.