Rear end clunking??
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Melting Slicks
Joined: Jan 2002
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From: Nokomis FL
Rear end clunking??
80K on my '99. I just started getting a clunking as I turn corners? Changed the oil 10K ago with no issues until now. Any ideas, are there U-joints back there?
Last edited by Old Rotor Head; Jul 29, 2005 at 10:27 PM.
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Originally Posted by Old Rotor Head
80K on my '99. I just started getting a clunking as I turn corners? Changed the oil 10K ago with no issues until now. Any ideas, are there U-joints back there?
The "turn corners" comment leads me to a suggestion. Check the differential for proper level. With car level it should just barely come out of the fill hole. If it's more the 1/4" lower than that, add additional and be sure to add a small amount of limited slip additive to the fluid too. Maybe 3/4 to 1 oz. If you're not sure about the proper ratio of limited slip additive to lube, and just want to drain the whole thing and start over, use the GM fluid and a full 4 oz bottle of GM limited slip additive. Or you can refill with Red Line 75W-90. It already has the the additive in it in the correct ratio. Not sure if Amsoil does, but maybe it already has it too.
Don't rule out the CV joints either. With the car up in the air, you may be able to track down the source of the noise by having someone hold one wheel while you rotate the other wheel back and forth. See if you can hear anything or feel excessive "slop". HTH
