Remove and Replace Transmission Oil SealMy transmission has been a bit incontinent, dribbling on the garage floor at some slow rate. Careful inspection showed the transmission fluid was coming from the left half-shaft flange. The oil seal need to be replaced. This note describes the procedure.
The oil seal is described as 45 x 65 x 10 which presumably are the dimensions in millimeters. It cost about $5. The Porsche part number is 999 113 058 50.
The job was done completed in a couple of hours at my slow speed.
You can do the work without removing the transmission from the car. Just jack it up remove the wheel and place on jack stands.
To get started, remove the half shaft from the differential. Only one end needs to be take off.
Note: I had a problem with the stretch bolt that holds on the flange. It was replaced because it would not take the required torque. See the last picture on this page.