Transmission leak from spur gear drive on Porsche 911

Problem Description and Possible Solution
The spur gear drive area is prone to leaks; the seals/gaskets can be replaced without removing the transmission. 
Problem Data
RepairPal Verified
Average mileage: (–)
Drive Train affected: Automatic Transmission
9 model years affected: 1990, 1991, 1992, 1993, more1994, 1995, 1996, 1997, 1998
9 people reported this problem