Ahh dang, I just replaced the differential in my DHK WOLF. I bought the assembled differential and the assembled pinion gear. Once I got to the diff case out, and removed the old diff assembly, I did notice a bunch of grease in the case, but thought it was from inside the differential. I should have taken a picture, because this differential was JACKED up. Some because I took an entry level buggy and put an XTM brushless set up on it, added some Big tires, and drove it like it I stole it. Once I heard the gears grinding, I had a few beers, and kept driving it with just the front wheels. Anyway, back to my post. I though the grease in the case was from inside the diff assembly, and not outside the diff but inside the case.
So I am understanding correctly - ----- There is supposed to be oil inside the differential Gear assembly, AND grease inside the differential "box" or "case". Is that correct?
I did not add any grease at all. I really don't want to take the whole rear end apart again, but If I am suppeded to have grease in there, I guess I will have to.