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Hub Seal @34K Miles

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Audi 3.0 V6 TDI?

I like my AAM axles entirely, no issues so far, many rebuilt dana axle on jeeps before.
Installed locker into AAM, setup of backlash and preload was never so easy as on this one, no shims, no problem.

A locker would be wonderful since I don’t seem to have much luck with the AAM anti-spin rear ends. Out of about 10 trucks that I’ve owned with that axle type, 1 performed well. It was a mega-cab 1500 (8 lug) with a 5.7. It would climb out of places like it had a locker but was an AAM anti-spin.
 
Strange as the AA axle has a seal that does not ride on the axle tube it self . It has a seal sleeve that seals to the tube and the seal rides on that sleeve almost like a mechanical seal.
seal.jpg
You can clearly see the inner sleeve in the pic.
I'd bet that someone forgot to put some sealant between the sleeve and the tube and that is the source of the leak not the seal it self. If the tube is slightly out of round the sleeve might not seal to it. a very small bit of RVT silicone on the tube under the sleeve solves the issue.
 
Mine did not appear to be leaking at the ID. It really didn't look to be coming from the area where the seal "rides on itself", either. It looked more like a failure where the seal is bonded to its outer housing. Odd arrangement, and odd failure. I am hoping I don't see an encore.
 
I didn’t remember it was that type of seal. That’s how most Wheel seals work on big stuff..doesn’t wear out the seal surface on the spindle.
Barrier seal pioneered the idea, but there were some failures where the inner seal stuck to the outer seal resulting in a fairly good sized trench appearing on the spindle. I think a lot of that was installation methods..

After that C/R, National, and more started to offer the same style.
 
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I didn’t remember it was that type of seal. That’s how most Wheel seals work on big stuff..doesn’t wear out the seal surface on the spindle.
Barrier seal pioneered the idea, but there were some failures where the inner seal stuck to the outer seal resulting in a fairly good sized trench appearing on the spindle. I think a lot of that was installation methods..

After that C/R, National, and more started to offer the same style.
That style is reall y nice when dealing with hi mile big rigs.Much better than having the stub welded up and turned down
 
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