ECGS Bushing Problem or is it . . .

I bought the Needle bearing removal/install tool and seal install tool from ECGS along with the new bushing and seal (x2).
Needle bearing came out easy peasy, new bushing went in amazingly easy. Seal a bitch as mentioned.
The seal install tool was cumbersome to use due to lack of space. I ended up using 2 inch PVC fitting and block of wood.
Again, I get what the seal function is. Why does oil seep between the outer part of the new bushing and the cast diff housing it sits in. I get that oil will come over the inner side of the bushing.
Just for he record I have been getting dirty with vehicles for over 40 years, I know a thing or two, or three.

 

The bushing should be a press fit and be tight enough to seal the oil off to the level/degree of a seep. On the other hand, the tolerance between the bushing and axle is loose on purpose to allow for a oil bath between the two surfaces. Since this surface sits below the oil level, oil will freely move to either side of the bushing, thereby requiring a seal to keep it in.

If the bushing didn't push in under finger pressure, then the gap that exists can't be too large. Maybe there is some deformation of the housing that is causing the seepage. As long as the bushing can't spin in the housing, shouldn't be a problem. Since the seal will also seal of the housing/bushing interface, you should not be seeing oil on the outside of the seal, if it is working properly.

 

If I recall correctly, mine was pretty tight. I didn't have to beat the crap out of it to get it in, but it was a snug/interference fit. You might be a tad oversized on your bushing/bearing bore.

 

Maybe the bushings is machined wrong?

 

This is what I'm leaning towards, it was a tight fit going in, tighter than the wife anyway.
I gotta check the seal and see where its sitting and maybe adjust that or replace.
Bushing machined wrong, there's always a chance but I find that hard to believe.