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ON a couple different times both air pressure gauges almost peaked then the pressure dropped back to normal. I found the relief valve on top of the housing, both housings seemed to move freely. One time when the gauges got above normal I could hear the pressure release from the right side just...

Thank you sir, I saw the pressure gauges go up past where it should. I tried to find where the pressure relief was but could not find it. Is it on the rear end housing or is it the valve on the bottom of the bed. There were 2 of them up there. Do you know where in the TM's I would look under for...

I have a 1985, M923. The middle axle drivers side started leaking yesterday. I went through the TM's looked up rear end, axles, differential, seals and can't find a break down of how to replace the seal or how the bearings and gaskets are located. I can't even find the parts # for the seal. Can...