Noise: rear end.C5

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May 7, 2013 | 05:41 AM

20fixed00roof

Thread Starter

Intermediate

Joined: Jun 2012

Posts: 39

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Noise: rear end.C5

After a dyno tune a clunking sound became noticeable and is now not annoyance but a concern as the car is scheduled for a track day Sat. My C4 has clinking sounds and the axle u joints were replaced to resolve that issue. The C5 sounds a bit more chunkier than the C4 clinking. Seems the sounds are reduced under slight acceleration. Any of you drivers or technicians have any thoughts. Thanks.

May 7, 2013 | 10:41 AM

SaberD

Melting Slicks

Joined: Nov 2008

Posts: 2,938

Likes: 65

From: Rochester Hills MI

could be a ton of things. check all the bolts in the rear suspension and brakes for tightness.

May 7, 2013 | 11:33 PM

MNCrystalRed2011

Pro

Joined: Mar 2003

Posts: 699

Likes: 0

From: Richfield MN

Check the spindle nuts on the rear wheels. They are known to come loose once in awhile. I've had to tighten mine a couple times.

May 8, 2013 | 02:12 AM

striper

Le Mans Master

Joined: May 2005

Posts: 6,366

Likes: 249

From: Fort Lauderdale, Florida

Loosen rear spindle nuts, popaxle ends in, lube axle splines and retighten nuts to spec. Fixed noise on mine.

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