i appear to have a leak via the elbow speedo drive on my 901 transmission. I see from the manual that there is a set screw to remove the assemby. If I stabilize the trans on a stand and remove the trans mount, i can pull the speedo drive out of the car without removing the trans.

I am thinking the seal up inside the drive is bad and thats what is leaking. It's the same seal as the spindle seal, PN 999-701-084-50. Does anyone have any experience with changing out this seal to stop a leak? Am I on the right track?? Using Swepco fluid and running out of it.. Thanks, Bob