Mine did this to.... The grease is coming from the transmission
   out of the splines like you guessed. You are missing a
   rubber seal over the splines areas that  keeps grease  out of the CV
   joint.

                 Eric Zeno
                 emz@nauticom.net
                 86 Syncro
                 86 GL
                 72 240Z
               1936 Chrysler

On Thu, 1 Aug 1996, Peter Jensen wrote:

> 
> This is a bizarre one!
> Upon pulling my CV joints to remove my tranny for a rebuild :-(  90 weight 
> oil came pouring out of the inner joint on both sides.  I know that all of 
> the joints should have grease in them.   The only way oil could have gotten 
> into them is if it leaked down the spline of the tranny shaft into the 
> bearing, or if someone filled them with 90 weight a long time ago???
> 
> Has anyone EVER SEEN this?  How can I prevent this from happening if it 
> truly is a leak?
> 
> Peter
>