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Differential noisy in turns.

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Old 05-26-2012, 11:20 AM   #1
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Default Differential noisy in turns.

My LT1 96Firebird makes noises from the differential, ONLY after it gets hot like a 30 min drive on the interstate with 70MPH.
and ONLY in slow tight turnes, like going in slow turns with parking the car.
after the car sits a while and in City driving i dont have this noise.

I will check the fluid level. there is a leak but not dripping.
anyone with the same experiences??
LT1 with 150,000 miles.

Greg
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Old 05-26-2012, 11:22 AM   #2
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what kind of noise? is it like a moaning sort of? can you tell whereabouts? from the center section? or out near one of the tires?

to be honest, with the little info, it sounds like a possible problem with the clutches in the diff.......
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Old 05-26-2012, 12:42 PM   #3
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If its pretty quiet you could just need to change the fluid.
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Old 05-26-2012, 01:33 PM   #4
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yes it is a moaning noise i think from the centersection

why does the noise come only when i drive faster for a while? during slower driving it will not getting noisy!
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Old 05-30-2012, 09:45 AM   #5
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I am going to change the oil. i got normal Valvoline 75/90 oil Which says limited slip. Nevertheless a bottle of Limited slip.additive from GM is necessary with my Stock differential G80 code I guess.

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Old 05-31-2012, 08:18 PM   #6
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I agree changing the oil in it would be the first step.
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Old 06-01-2012, 11:03 AM   #7
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It sounds like it's sticking after it gets hot. Try adding 1/2 oz of friction modifier until it goes away. If both tires still lock up under hard acceleration, you have found the perfect amount of modifier. Do not over-do it.
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Old 06-01-2012, 11:03 AM
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2001, camaro, differential, firebird, groaning, gto, limited, lt1, noise, noisy, pontiac, rearend, reverse, slip, turn, turns


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