khnitz
Well-known member
Over the last few days, I finished up the transmission replacement on our Passat. I've driven about 120 miles with the "new" transmission and it makes it a whole different vehicle. No driveline noise, smoother shifts, very nice!

There were several issues with the old transmission:
The clutch release bearing had failed (it's face had worn off and fallen apart - this likely led to insufficient release of the clutch and the creep I could still get while in gear with the clutch pressed in at a stop. It also made Reverse and First gear shifts tough)...

The bearing cage for the input shaft bearing had broken apart - so the ball bearings were not evenly spaced around the shaft and this allowed for play on the input shaft (this is what I think was the biggest contributor to the driveline noise, as it varied with engine speed, not wheel speed)...

And the synchros for 3rd and 4th gear were worn to where it would pop out of 4th (this started happening last summer) or 3rd (that started more recently) gear while under load.

Next to the engine replacements on my son's Equinox, this transmission replacement was the biggest job I've tackled on a vehicle.

There were several issues with the old transmission:
The clutch release bearing had failed (it's face had worn off and fallen apart - this likely led to insufficient release of the clutch and the creep I could still get while in gear with the clutch pressed in at a stop. It also made Reverse and First gear shifts tough)...

The bearing cage for the input shaft bearing had broken apart - so the ball bearings were not evenly spaced around the shaft and this allowed for play on the input shaft (this is what I think was the biggest contributor to the driveline noise, as it varied with engine speed, not wheel speed)...

And the synchros for 3rd and 4th gear were worn to where it would pop out of 4th (this started happening last summer) or 3rd (that started more recently) gear while under load.

Next to the engine replacements on my son's Equinox, this transmission replacement was the biggest job I've tackled on a vehicle.
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