A4 4l60E third gear vibration
A4 4l60E third gear vibration I know there are many topics on vibrations in third gear. I had my A4 originally rebuild with a beast sunshell and had the dreaded third gear vibration. It was fairly bad. The builder changed to a Sonnax sunshell (supposedly) and although better, the vibration is still there.
Does anyone have data to show a before and after how much et or power draw this vibration was consuming? My car is a little slower than I would expect and I am trying to narrow down the root cause. Thanks!
Does anyone have data to show a before and after how much et or power draw this vibration was consuming? My car is a little slower than I would expect and I am trying to narrow down the root cause. Thanks!
The power the vibration takes would be unmeasurable however a question are you running a poly mount ? If you are the vibration with any set up is pretty much inevitable. The drive train will always have some vibration and because its direct through 3rd will be the worse this is why GM installed that rather expensive to make liquid filled mount.
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Have you changed the tail housing bushing and inspected the yoke on drive shaft. Also during the trans build was the bushing in the rear sun gear and the rear case bushing changed? Many times they are no and could certainly help create vibration. I change these in all my builds. However with non stock mounts engine or trans some vibration is probably inevitable .
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Have you changed the tail housing bushing and inspected the yoke on drive shaft. Also during the trans build was the bushing in the rear sun gear and the rear case bushing changed? Many times they are no and could certainly help create vibration. I change these in all my builds. However with non stock mounts engine or trans some vibration is probably inevitable .
I just know these get skipped a lot in a build but have no idea they should always be replaced IMO
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