Noise in manual transmission due to pinion bearing failure on Porsche 968

Problem Description and Possible Solution
Pinion bearing failure can cause noise in the manual transmission. A revised assembly procedure and components are required for repair.
Problem Data
RepairPal Verified
Average mileage: 69,950 (58,000–75,000)
Drive Train affected: Manual Transmission
4 model years affected: 1992, 1993, 1994, 1995
8 people reported this problem
Viewing 1 - 3 of 3 comments
started late 60,000's, now at 77,000 getting much louder. Scheduled to have it repaired soon (May 2013)
Pinion bearing started to whine at about three (3) years ago @ 72,000 mi.; now at 77,000 it is significantly louder. Will probably get it fixed in early 2013
A diferencial in my transmission is noisy; is it normal or not?