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Old 07-27-2012, 09:04 PM   #1
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Join Date: Jun 2009
Location: such united many state
Posts: 5,895
My Ride: so turbo wow
Driveline shudder when shifting into 2nd from high speed

All I can think of that would cause this would be some sort of mount, or the flex disc.

At high-ish speed especially (> 40 mph), these are my symptoms:

1. Push in clutch
2. Move shifter from 6th to 2nd. Clutch is still pushed in.
3. Try to move it to 2nd. Feel strong shudder in the rear-ish of the car that shakes it for about 1-2 seconds
4. When shaking subsides, shifter moves into 2nd
5. Slow down a lot, rev-match, release clutch

It doesn't do this with any other gear with this scenario.

It seems to do this only at high speed. What could cause this? All I can think of are:

1. Flex disc
2. Diff mounts
3. Diff oil
4. Transmission oil

Or is this something else? I've looked but can't find this symptom. Everyone says that a flex disc actually makes no symptoms...and you just notice it's cracked.
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