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Old 08-08-2007   #21
SC UL8R1990
 
Join Date: Feb 2004
Posts: 36
Default Re: rear end movement

lol
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Old 09-10-2007   #22
Mika73
 
Join Date: May 2004
Location: Finland
Posts: 123
Default Re: rear end movement

I did just take my Z to service. All bushings are changed to polyurethane.

Rear end/wheels started jumping last summer when I do ´pedal to metal´ with 1th gear. Car has been driven 121000km and its -90.
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Old 12-29-2007   #23
crazyb1
 
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Join Date: Jul 2005
Location: Star, Idaho
Posts: 56
Default Re: rear end movement

Got right rear bearings replaced under warranty two months ago. Now, the same wheel is making the same noise again. The guy who did this work said he'd replace it again but wants me to take it to a dealership to find out if something else is causing the bearings to go bad. Any suggestions? The car hasn't been abused so why would the right rear go bad three times in less than a year while the left one is fine? Was it installed properly? I'm getting tired of having this same issue over and over again!!!! He did mention that he'd put in aftermarket hub assembly and when he talked to a chevy dealer on the phone, he responded that he would replace again with OEM if necessary, still under warranty.

Crazy
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Old 12-29-2007   #24
gbrtng
 
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Join Date: Feb 2006
Location: San Antonio area
Posts: 1,179
Default Re: rear end movement

Is the bearing really going "bad" or do you have a u-joint that needs help?
If the bearing has some vertical or horizontal play - an 1/8" or more at the tire face - then it should be replaced. Or maybe you connected with a bad batch of bearings; best to use the AC Delco OEM ones.
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Old 12-29-2007   #25
Jason 91
 
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Join Date: Mar 2006
Location: Denver, CO
Posts: 124
Default Re: rear end movement

I had bad u-joints causing squeeking in my rear end and I suspected everything but that.

Jason
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