Transmissions and Drivetrain Need help with your trans? Problems with your axle?

Clunk Clunk sound when i gun it

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Old 02-17-2003, 09:17 PM
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Clunk Clunk sound when i gun it

when i step on the gas all the way, i hear a clunk clunk from the rear of the car, like it's coming from the trunk but it's from under the car. any ideas guys?
Old 02-17-2003, 10:22 PM
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My Camaro does the same thing, what the hell is that?
Old 02-17-2003, 10:25 PM
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i would guess its a bad tranny mount

cheap and easy to fix
Old 02-17-2003, 10:42 PM
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thanx bro, u are givin me alot of help tonight:hail: :hail:
Old 02-17-2003, 11:06 PM
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It's probably the tranny mount very easy fix, or it could be U-joints but iam not to sure on that.
Old 02-17-2003, 11:20 PM
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Originally posted by 903.1fbody
thanx bro, u are givin me alot of help tonight:hail: :hail:
no prob man, i do what i can
Old 03-05-2003, 11:06 PM
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dont go out any buy the tranny mounts just yet like my stupid a$$ did look under, some bolts just might be loose.
Old 03-06-2003, 06:03 PM
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Changed the mount yesterday and I fixed the problem perfectly. Shifts great and no more clunck.
Old 03-06-2003, 11:32 PM
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congrats! such a small part, however, stops the clunk that sounds like your car is falling apart!!
Old 03-07-2003, 01:01 AM
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Car: 2002 Z28
Engine: LS1
Transmission: 4L60E
Axle/Gears: 3.23
i have the same problem, i get a multiple of clunks when my tranny downshifts, i have a new Prothane tranny mount, so unless those things only last a few hundred miles i believe it is my u joints which i plan on changing within the next 2 weeks. Ill let you guys know if it fixes my problem.
Old 03-14-2003, 03:48 PM
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how easy is this to do, i mean, if it's the mount, am i gonna have to un mount the tranny to change it? will i have to jack up the entire vehicle on a lift or will jacking in up with a floor jack do the trick?
Old 03-14-2003, 04:56 PM
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Car: 2002 Z28
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to change the mount, i jacked up the front of the car, and put it on jackstands. Then i unbolted the mount and jacked up the tranny by the tranny pan (use a block of wood or something to keep from damaging the pan). THen just change the mount. Its that simple.
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