YJ Axle Seal

The inner seal doesn't do anything that the outer seal doesn't do. That is, they both prevent the shift assemby's dedicated oil supply from leaking into the axle tube between the inner seal and the right side carrier seal, or out the end of the tube.

The oil supply for the shift assembly does not come from the the differential, it has to be added to the shift assembly through the 4x4 indicator light switch hole any time you open the shift housing up. You DID put oil into the shift housing after you replaced the outer seal, didn't you? If not, you've likely toasted the whole magilla. If you did, then the seal isn't properly seated, was damaged when installed, or the outer shaft is damaged at the sealing surface. As tough as those are to get seated, I'd opt for the first two possibilities I listed.

Mike

Jeepster wrote:

If you don't have the factory tool this is a bear to get pressed in without ruining the seal. I still have a tool I made for these hanging in my shop somewhere. Even with that I generally ruin one or two before I'd get one in there fully seated.

The disconnect axle is absolutely the worst piece of Rube Goldberg nonsense ever installed on a Jeep.

I use threaded rod and big thick washers. It 'is' a pain.

Mike

Jerry McG wrote:

I have a little pump I use for diff fluid and each time I take it apart I pump in enough to give the gear lubrication

I kind of though the inner and outer seals where the same but I was thinking that the inner seal might be completely gone and overwhelming the outer seal. I'm guessing now that the shaft is scored enough to not give me a good seal or I messed up the seal on installation.

Yes that is what I used...I actually had to use the grinder to make the washer the right size. I will give it another go this weekend and let you know how it goes.

Thanks every>I use threaded rod and big thick washers. It 'is' a pain.

I was going to say something Bill, but wasn't 100% sure. I remember having this discussion before maybe I think and there wasn't one on the YJ I helped do. Only the one seal per side.

Mike

"L.W.(ßill) Hughes III" wrote:

Otherwise it would need a fill and drain plug. No way you can trust seals to be close to 100%.

Mike

"L.W.(ßill) Hughes III" wrote:

The inner bearing for the intermediate shaft has an integral seal.

I have read that they do and never looked when I had it apart..... I wonder why the need to put fluid in the vac disconnect housing if you don't have an inner seal.

To prelub it so it doesn't wear before oil splashes up there?

Mike

Jeepster wrote:

No oil splashes in there, the diff oil is sealed in the pumpkin by the carrier seals. The lube stays in the shift housing area. between the outer seal and the inner bearing/seal assy

overwhelming

Then how can the outer seal leak?

I mean when they leak, they freaking pour it out if you are tipped sideways.

This cannot be if there is an inner seal. (Don't even think about telling me the inner seal must be blown on 'all' of the ones I have seen or heard of needing an axle seal changed, I won't believe that for a second)

Where is the dip stick or check hole for the shift motor oil?

The book cannot say 'toss a tablespoon or so' in there when opening it up only.

The maintenance schedule does 'not' mention anywhere that you have to check the oil level in the shift motor nor are any provisions made to do so.

'Every' other fluid level in the Jeep has a way to check it.

Tell ya what, when I get a chance to help the next person who needs an outer seal changed, I will get them to fill up the shift motor to see if oil actually stays in it or the OP could do that just to make sure.

Mike

Jerry McG wrote: