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Rearend change, now its whining! please help.

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Old 09-21-2009, 06:57 PM
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Default Rearend change, now its whining! please help.

Ok guys I changed out my rearend the other day for one out of a 99 Z28. The rearend had 98,000 miles on it and looked fine. Now its whining,its really loud at 60 mph. I put synthetic back into it( 2 bottles). Is this the correct amount? I also put in a tube of treatment. I've only drove it 37 miles since the rearend change. I've worked my *** off on this and I'm really getting frustrated! Any info will be very helpfull. Thanks for your time.
Old 09-22-2009, 04:49 AM
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You may of ended up with a junk rear, but first I'd swap out the synthetic gear oil for a thicker gear lube to see if it helps out the noise. Bob
Old 09-22-2009, 08:48 AM
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Originally Posted by Exotic Performance Plus
You may of ended up with a junk rear, but first I'd swap out the synthetic gear oil for a thicker gear lube to see if it helps out the noise. Bob
yea thats what i'm afraid of!! but I'll try switching the oil. Thanks.
Old 09-22-2009, 09:32 PM
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Fill it to the fill mark, and try a thicker fluid.




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