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Old Aug 4, 2006 | 08:33 PM
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Default rearend noise

i just bought a 99 Trans Am about 7 months ago. she only had 51,000 miles on her when i got it. now i'm up to 60,000 and i got this whining noise coming from the rear end. the rear diff was flushed and the rear wheel bearings were replaced a week ago and the noise is still there. someone suggested carrier bearings going bad but i dont race the car, never neutral dropped, never burned out, and is still running stock. i live in pembroke pines, fl which is broward county and need some help finding an honest mechanic. these last guys i saw were ******* worthless. if anyone can help it be appreciated.
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Old Aug 4, 2006 | 08:43 PM
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broward powertrain is located in Pompano. Pricey, but do really good work. They can do the diagnosis and labor. When my rear started heading south I upgraded there; 2 yrs later, no problems.
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Old Aug 4, 2006 | 08:50 PM
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Sure it wasnt always there?? My gears whine like hell, and supposedly is normal (Says many members on here, as well as the Richmond techline) Course, 4.10s are not stock. But my brothers 99 WS6 has the factory 3.23s and it whines on the highway.
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Old Aug 4, 2006 | 10:31 PM
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its normal well.... mine did it before the fluid change lol now its silent
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Old Aug 4, 2006 | 10:37 PM
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dude, your factory 10 bolt is prolly gonna take a dump on you soon. do a search on here about it. Hell, there is even a couple of stickies by Kiliente. Everyone upgrades to a built 12 bolt or 9 inch. There is no sense in putting money in your factory 10 bolt diff.
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Old Aug 4, 2006 | 10:46 PM
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my bud has a 99 z28 and he has taken it to 3 different dealers for the same thing and got the same answer...its normal on that year and the 98's
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Old Aug 5, 2006 | 12:16 AM
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Originally Posted by just1news6
its normal well.... mine did it before the fluid change lol now its silent
What gear oil do you run?? I have tried Full Syn. ,Conventional Standard Weight, and Heavy Weight, all to no avail. Maybe my situation is different due to the gear change. Richmond told me and my tech the noise is normal especially with 3.73 and higher ratios in a 10 Bolt. He said the most my tech could do was adjust the backlash and change the pitch or RPM where the whine was the most....so I just left the noise and kept the best gear mesh.
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Old Aug 10, 2006 | 10:24 PM
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I had the same thing happen to my 00' TA with 60k on it my rearend went out had to get a new one
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Old Aug 10, 2006 | 10:33 PM
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Originally Posted by HD1911
dude, your factory 10 bolt is prolly gonna take a dump on you soon. do a search on here about it. Hell, there is even a couple of stickies by Kiliente. Everyone upgrades to a built 12 bolt or 9 inch. There is no sense in putting money in your factory 10 bolt diff.

I was at Cayuga Raceway and I did something stupid to my rearend. I went from 1st to 2nd and back to 1st at wide open throttle. I got a horrible lock up followed by grinding, wheelhop and many other crazy noises I could only begin to tell you. NOW I HAVE THE WHINE ALSO.

I am currently gathering funds for a 9" rearend.

warren
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