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yukon gears whine

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Old 11-05-2008, 07:42 PM
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ok i just got my 4.10s and true trac installed burns the tires like no tomorrow but they whine like a 747 taking off its getting very old listing to a airport runway in my truck. does anybody elses yukon gears do this
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Old 11-05-2008, 07:44 PM
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JUST got them installed? Did you break them in? If so how long, what did you do?
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Old 11-05-2008, 07:44 PM
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What did you lash them @.. Mine are as quiet as stock... Also never made a sound when first installed

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Old 11-05-2008, 07:52 PM
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Originally Posted by A Low Dime
JUST got them installed? Did you break them in? If so how long, what did you do?
500 miles but i even noticed they whined the first day i drove the truck

Originally Posted by Mangled03gmc
What did you lash them @.. Mine are as quiet as stock... Also never made a sound when first installed

John
dont know i had someone i know set up the rearend for me
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Old 11-05-2008, 07:57 PM
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Find out LASH set on them

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Old 11-05-2008, 08:00 PM
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What John said!
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Old 11-05-2008, 08:02 PM
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what is it suppose to be set at i know my 8.8 in my mustang was 15 to 20 if i remember correctly
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Old 11-05-2008, 08:05 PM
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It is normal for them to whine being aftermarket AND 4.10's, but whining a lot can because you drove it too hard in the beginning or not set quite right.
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Old 11-05-2008, 08:14 PM
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6 to 12 i think..i just set my 456 gears on 10
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Old 11-05-2008, 08:57 PM
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New gears @ 6-9

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