[carkrazy1987]

Its the yoke. I have seen it alot on the line working at a gm dealer. We see yoke leaking from the "cap" we usually replace the yoke and be done, sometimes when the yoke is not available we put alil epoxy on it and call it a day. We used to have a heavy duty grease we would put in the splines that was thick enought to prevent fluid going by, I may still have a can somewhere.