VWC-113-311-123-A - 113311123A - FRONT MAINSHAFT BRG WITH SHOULDER 62MM X 24 8MM X 17MM - BEETLE/GHIA/T-3 61-10/73 BUS 61-67 - SOLD EACH

This is the main culprit of a noisy transmission. A way you to check yours- is to push the clutch in while you are driving. If the noise goes away then its the main shaft bearing. By pushing the clutch in the throw out bearing supports the main shaft quieting the main shaft bearing.