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post #1 of (permalink) Old 08-17-2001, 04:26 PM
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T-case noise

I have a question about gear oil. I have standard gear oil in my T-case. In the morning on the way to work it is nice and quite. In the afternoon it whines like a b**ch. I should mention that the difference between morning and afternoon can be as much as 20-30 degrees. What is the best oil for noise reduction I can use?


I Work to Wheel, because I wheel, I work.
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post #2 of (permalink) Old 08-17-2001, 05:48 PM
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Re: T-case noise

We've always run 80/90w in our gearboxes with no noise troubles.

Are you running synthetic? Sometimes the thinner nature of synthetic oils can allow for more noise creation.

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post #3 of (permalink) Old 08-17-2001, 06:15 PM
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Re: T-case noise

May I advise? I would recommend you drain a small amount of lube into a clean coffee can or cup and check for metal. Gears don't usually just start whinning (as long as they have never been run low on grease.) It most often starts as a bearing starting to fail which can cause a whine. An early intercession can certainly save replacement of some very expensive gears. Also, don't overlook the possibility that the noise is coming from the rearend. It can really sound like a transmission. Do the same lube check for metal.

88 Sam 4.16,welded rear,lock-rite frnt,31"Hi-tech muds on Ford truck wagon wheels, 4.5 spoa,5k quick mount Ramsey
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