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Cool insight into the u joint physics. I had suspected that differences with seals could be the cause of this. I will say, at my farm, I have never worried about not purging all four seals, and have never had a single u joint failure. The equipment does get very frequent greasing, but in...

I am using an air grease gun. It is definitely pumping grease into the zerk and into the u joint, as it is very clearly purging from 3 out of 4 seals. Not just coming out of the zerk. I am the manager of a farm so I definitely know what you mean when you say it "feels" like it goes it. In...

Drove it again today. Everything is good as usual (no bad noises or vibrations) so I will replace those bearings and see what happens...

Well I totally agree with that, however, I know you are not supposed to trust the dash but my dash says 70k miles - that is a ton for a deuce compared to most others if that is true. Knowing that the upper pinion bearings can be problematic in general, I wouldn't be surprised if the bearings...

Any hints on pulling the cap style u joints? It seems pretty seized into the yoke... I'll pull the shaft and check the yoke nut. How tight is tight? IIRC the TM says 300-600 ft lbs...

Totally agree on the simplicity of the axle. I just wasn't sure if a bearing/race swap was a feasible idea without a complete overhaul. Like I said, if I didn't actually feel this slop today, you would never know there are no sounds or any other sign. I will order the bearings and see what...

Very true, however, the only play is just that side to side. Gears seem fine. Meaning it is the only real problem with the axle I think. My truck definitely isn't the only one that has had this problem I don't believe that for one second. I've heard that the upper pinion bearings are common...

Different Axle! That is the rearmost rear that had the metal in it. Everything seems tight with that one. The frontmost rear axle is the one with the excess play...

Hello. Long story short, my deuce has been having drivetrain issues. First it started with finding metal in the rear axle (still haven't messed with this yet) Second, the driveshaft vaporized as I was going down the highway. Took the parking brake with it. Put a new unit in and it works...