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gear whine

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Offline WVzuk

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gear whine
« on: December 29, 2015, 05:10:10 PM »
My Sidekick has a pretty loud gear whine under acceleration.  It goes away as soon as I let off the gas.  I changed my diff fluid a few months ago but go through a lot of muddy water offroad.  I drained the diff fluid today and it had a little milky water in it.  I think the breather tube was a little loose. 
I last changed the trans fluid about a year ago.  Again there could be muddy water in there by now so I'm going to change it again.  I'm not totally sure if its the diff or trans.
I ran Mobil 1 synthetic 75w-90 in the diff last time, can't remember what in the traWhat iis the best diff oil to possibly quiet this down?  Is lucas oil additive any good for this?

Thanks

Jon
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1994 4dr Sidekick: 3inch Zukination lift, 30x9.50 mud tires, snorkel, ARB rear locker, homemade bumpers
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Offline kreator

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Re: gear whine
« Reply #1 on: December 30, 2015, 09:50:25 AM »
How long has it been whining ? has it just started or has it been getting louder and louder ?
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BOB | www.KreationFab.com | 503-689-1377
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Offline inchworm

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Re: gear whine
« Reply #2 on: December 30, 2015, 11:13:45 AM »
have you tried it with drivelines disconnected ? could be in the tranny, t-case , or diffs.
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