Originally Posted By: Fitz98
Interesting. That is what I thought. My last assembly, I lubed up the splines and the outer shaft assembling a transfer case to a transmission and drive shafts to transfer case with bearing grease.
I had no noticeable issues with the drive shafts, but did notice that the grease slung off the outside of the shaft going into the tranny, causing a ring of grease around the edge of the inside of the transmission (I saw this when I had to disassemble it again) After that I assumued that grease on the outside of the yoke could contaminate the fluid of the piece it is going into.
Sure, a little bit of grease may get into the oil, but I have never had a situation where there is so much grease in the oil that problems occur.