Hi folks,
I need some help assembling my Hybrid diffs and figured I would post in this thread..

I am in the process of assembling the differentials, but are having problems with the mating of the ring and pinion gear.
The ring gear / carrier assembly seems to be a little crooked no matter what I do, so when I install the completed differential into the diff cases, there is a tight spot when turn the pinion by hand.
I have inspected the mating surfaces of the ring and carrier for burrs and debris, but the result is the same. I also tried aligning the screw holes in the ring gear to different holes in the carrier, but that didn't help either.

What do I need to do to fix this?

Both of the differentials are also leaking a little oil through the output shaft on the non ring gear side. I took them both apart and and reassembled them, but the leak is still there. Is this normal? Maybe I need new O-rings, but it seems strange that both diffs have a leakage on the same side, while the ring side of both diffs do not, no?

This is my first time building 8th scale diffs, so I am not sure what is acceptable and what is not..