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1

I'm thinking the issue is probably with the torque rod (on some cars called a dog bone) which keeps the engine/transmission in check during acceleration/deceleration. At least one end of the "dog bone" has a hard rubber piece which can wear out over time. Depending on how worn out it is, the noise will could be louder or not. You would probably notice it ...


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If you are going to keep hold of your A3, then a visit to the Ross-Tech.com web site might be useful to you. Not only can you obtain a VAG diagnpostic system to check your car, but they also have a Wiki on A3's.


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I've got two strong suspicions. First is the pinion angle Paulster2 calls out - it's common with a shackle lift or SOA lift that the axle gets rolled so the rear driveshaft won't need replacing (too short with the lift). That's hellish on u-joints. if the transfer case end doesn't start with a CV joint, you simply cannot get away with an ordinary u-joint at ...


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I think there are a lot of things going on here, so I'm not sure there's a "right" answer (for others who visit this thread). For my particular case, I think it ended up being the following things: Axle bearing going bad (it finally completely destroyed itself on a trail) Wheel noise (perhaps imbalanced, maybe overinflated, etc.) Other things I've yet to ...


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My bet is... the clutch disk (the friction part) happens to vibrate at a frequency that coincides with that particular engine RPM, and is barely free enough to vibrate with the clutch disengaged. If I'm correct, it's nothing to worry about - only an annoyance, and shouldn't shorten the life of the clutch.



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