got a head scratcher...rear end clunking
Thread Starter
Le Mans Master
Joined: Jan 2009
Posts: 6,226
Likes: 33
From: Morton illinois
St. Jude Donor '14-'15
got a head scratcher...rear end clunking
So, just had the trans rebuilt at rpm and it shifts smooth. Took the rear all apart and cleaned the crossmember and all. Just put it back together and I have a very loud clunk in the rear. I checked all the bolts and everything. Tight. Halfshafts are greased, torqued and all. It's speed dependant, so the faster I go the louder and more aggressive the clunk. The diff was perfect before I pulled the trans so it can't be that. Amsoil fluid in the rear and trans. Could I have gotten water in a wheel bearing? The noise is Def from the rear transaxle area. Ideas?
Thread Starter
Le Mans Master
Joined: Jan 2009
Posts: 6,226
Likes: 33
From: Morton illinois
St. Jude Donor '14-'15
Tech Contributor
Joined: Dec 1999
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From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
LOL
I do it all the time. Chock the front wheels, jack the back, rest on stands and let her run in 2nd gear for a few seconds while you listen for the noise.
BC
I do it all the time. Chock the front wheels, jack the back, rest on stands and let her run in 2nd gear for a few seconds while you listen for the noise.
BC
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Pro
Joined: May 2012
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From: Milwaukee WI
My camaro always clunked in the rear till i got an impact wrench to pound down the bolts between the torque arm and the diff. Just wasn't possible to get it tight enough to not clunk but couldn't feel that it wasn't tight. Only did it on initial accel load and then initial decel load. Once i started just driving it home with the impact i no longer had issues with it.
With having everything out recently. I would put a wrench on every bolt i had out to check it was properly torqued before i dug too deep.
With having everything out recently. I would put a wrench on every bolt i had out to check it was properly torqued before i dug too deep.
Thread Starter
Le Mans Master
Joined: Jan 2009
Posts: 6,226
Likes: 33
From: Morton illinois
St. Jude Donor '14-'15
Also, took it all apart and nailed all the bolts down. Nothing is loose. Plus you could time the rotation of the earth to the noise...it's not a loose bolt. It's something spinning.
Melting Slicks
Joined: Nov 2008
Posts: 2,938
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From: Rochester Hills MI
it sounds to me like the half shaft may not be fully seated on the differential output shaft. sometimes it takes a good shove to get those things to go past the snap ring all the way.
Thread Starter
Le Mans Master
Joined: Jan 2009
Posts: 6,226
Likes: 33
From: Morton illinois
St. Jude Donor '14-'15
Man do I feel stupid....turned out to be the brake cable grabbing a wheel weight each rotation. Lol. Can't believe the noise was made from that. Haha. Deeeerrr
CorvetteForum Editor
Joined: Mar 2015
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How To Tuesday
In case anyone else is experiencing strange noises, here's another good resource...
https://www.corvetteforum.com/how-to...lunking-368680
https://www.corvetteforum.com/how-to...lunking-368680
Safety Car
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From: Da U.P.