transmission o-ring
 

so this happened. after I got the transmission in today I went to install the new axle. when I installed and torqued the axle nut I noticed a sudden leak from the transmission. after a little investigation I discovered that the "new" axle was bad. the inner cv joint was not seated (ball bearing into the groves.) this made the shaft about an inch too short, so when I torqued the axle nut it pulled the output flange out to the point that the o-ring wasn't seated. once I loosened the axle nut and pushed the flange back in, the leak stopped. I hope it did not do any permanent damage to the tranny. in any case, I get to wait for another week for the new axle to come in.

so this is the radial shaft, not the output flange, that is the larger piece with the bolts. apparently, removing the radial shaft is part of the process for replacing the LDS. instructions say to use a slide hammer or crowbar to pry it out. guess I found a third method. so, worse case, I will have to replace the radial shaft seal and the circlip. about $15 in parts, and top off my fluid.

Well, that went wrong, but you're on the right way. All i can say is check everything twice before you do something on a Porsche. It could be much more expensive.

Good luck with your second try.

Regards, Markus