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i referenced the chart in the stickey but did not see a number for the outer seal. do we have a napa # for this by chance?

So which seal do you think is letting the fluid in the drum? I just ordered the one on the back side of the drum figuring it was typical of how a normal 3/4 or 1 ton pickup was set up.

Lots of paint on them but i did not look that close. Over 10 years of being a professional mechanic and the righty tighty lefty loosey finally failed me:oops:

Well there was part of my problem. I was trying to loosen to the front (like a normal lug) on the drivers side aua

one way or another im going to have to change a few seals since now 2 drums are full of oil. Time to get my hulk on since I lack the items to do the lifting.

Is it typically something obvious like mud on the vent or a discrete issue as in a check ball in a vent cap?

I got the glad hand but its on a 3/8 hose I had laying around the garage

Just curious if it is normal to have a release of air pressure when removing the fill plug on the differentials on my 923. I have been reading of clogged vent lines making the axle seals leak(both left side rears on mine) and all 3 of mine did it when removed so I thought it may be just the way...

Am I up s*** creek without a paddle trying to use a 3/8 hose. At the moment thats all I got with a 25gal tank on my compressor. What is the torque on these anyways?

Whos Got or knows a good place to get rear hub seals for a 939 truck

You guys talked me into it, just bought a 1'' gun. Wife not so happy on the other hand:burn:

Just wondering what sort of impact guns guys are having success with removing the lugs on a 923a0. My 1/2in gun wont even sniff it. it may after they come off once but I have to change hub seals and cant get the lugs off. My large breaker bar and a 10' pipe didnt help either and im trying to...

Hello from ohio

I noticed a significant improvement when the outside temp was 30F cooler than the initial bouncy day. rule of thumb 10F = 1psi or so difference in air pressure so I had a roughly 3psi air drop which id say took 75% of the issue away. I would of never thought that slight of psi change would...

Am I right in seeing upper torque rods only on one side of a 939 truck? (opposite side of prop shaft). I hope thats the way it is and mine is not missing parts.

Thats it. Thanks for all the help fellas. Not new to wrenching but new to these trucks and ill apalogize in advance for the repeat questions that will come from me as I learn.

This would be 923A0 855ci. I have not got into it deep chasing the issue yet, just trying to get a decent starting point.

On my 923 I have to use the emergency shut off to shut it down. Turning the ignition switch off does not a thing. Ive heard of these being robbed off the trucks being auctioned off but who knows. I guess what im wanting to know is 1 where is the shut of solenoid located at and 2 am I on a path...

howdy from ohio

Hello From the united states