Leaky Seal @ DS Diff after OCGS bushing install

Hello all...I've been searching the internet/forums without much luck and am getting frustrated. At the beginning of this week I installed the ECGS bushing kit for the DS needle bearing in the diff of my 2010 SR5. Using the supplied seal I replaced my OE seal (using a socket of appropriate size to drive it in) and also replaced the axle assy with a new NAPA replacement, not their rebuild. The next morning I got up to a large puddle of diff fluid under the truck. I figured I had not got it in correctly, picked up a piece of dirt, etc. so I ordered a replacement seal also form NAPA and was an SKF seal which I have had great success with in the past. I did not have time to do the job myself so sent it to a local reputable shop to do the install for me. By the time I got it home it was beginning to seep already. All though once the truck sits it stops leaking (fluid is not flying around, so this makes sense). I then again got up this morning to a few drops on the pavement. I suspected maybe some fluid runoff was the case so I cleaned it up dry again, checked it a few hours later and same small leak. It is about 80% better than it was the first time but, still leaking.

Can anyone here confirm for me how far in the seal is supposed to go into the diff? Is there something I am missing here? I feel very incompetent at this point but will be honest, This is my first experience with Toyota, I have driven/wrenched VW cars for 15 years. ANY input would be great before I tear it apart again (I've ordered a OE Toyota seal this time). In the meantime I am going to keep my tranny funnel and bottle of fluid with me.

Thanks for any and all input here. This really shouldn't be giving me this much of a hassle.

 

I just had to replace my drivers side oil seal after the seal used in a gear change seeped from day one. I went with an OEM seal. Cleaned the inner surface area of the diff where the seal sits with a shop rag or whatever, then put a light coat of super grease or something on the outside surface to aid in installation. I used a cheapo seal pusher tool, but I suppose a piece of pipe or socket large enough would also suffice. Installed so that the edge of the seal was as flush as possible with the diff edge, so..flush, not inset deep or slightly out. I've had no other issue with it leaking. ..Flush with the diff on drivers side for me. A-OK

 

It was installed with the protruding lip sticking out correct?

 

Yes, protruding lip heading out towards the wheel. Same as the original was removed.

I noticed a ridge of rust all the way around about 1-2mm into the case so I was thinking the original was not flush. Ive actually read on other threads that guys have been putting them into the case until it comes up against the case on the inside without leaks. I think I am going to pop out the PS axles to confirm depth on this one. Seems to be a lot of differing opinions. Whether it matters or not, I can't say.


I am picking up an OEM seal today and am going to try it one more time. I will report back.

 

Thanks to the folks with the input. Used a OE Toyota seal and zero leaks. Tapped it in about a mm past flush, I popped the passenger side out to confirm depth. Lesson learned, do NOT use aftermarket seals.