Dana 300 won't stop leaking

[Greenmule]

About 8 months ago I have the T-176 completly rebuild with all new insides, and while this was being completed the Transfer Case resealed as it was leaking. Since then I have taken the jeep back to the shop 4 3 times as the Dana 300 leaks oil evey time. The shop is I think a good shop and I am happy with everything else, but they cannot get the t-case to stop leaking. They replaced all gaskets and seals and they also are not sure why the unit is still leaking. Any ideas?

 

[Old Dog]

does it keep leaking from he same place? if so where?

 

[Greenmule]

Its a gasket, not a seal. I am sure of that much. It seams like the rear side is wet so I think the side or mabe the top somewhere. Not sure if that helps.

 

[jamie]

Its a gasket, not a seal. I am sure of that much. It seams like the rear side is wet so I think the side or mabe the top somewhere. Not sure if that helps.

pictures would help tons here

 

[Old Dog]

Its a gasket, not a seal. I am sure of that much. It seams like the rear side is wet so I think the side or mabe the top somewhere. Not sure if that helps.

Gaskets usually only require that all surfaces be good and clean to seal. Have you tried usung a little rtv on it.
The seal on the other hand can give you fits if the output shaft is rough or has a groove worn in it.

 

[Posi]

Its a gasket, not a seal. I am sure of that much. It seams like the rear side is wet so I think the side or mabe the top somewhere. Not sure if that helps.

If your positive its a gasket then it narrows it down the bottom pan cover, and shifter housing being the only two gaskets in the case.

I would suggest cleaning the case to pin point the leak.