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NP231 whines like crazy!

   
Old 01-09-2012, 04:24 PM
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Default NP231 whines like crazy!
Hey guys I've got a pretty loud whining coming from my t case when I'm in 4wd. High and Lo range both make the noise and the faster I go the louder it gets. Any ideas? I've got a 2" bb lift and 235/75r15 dunlops
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Old 01-09-2012, 04:29 PM
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Have you checked your fluids.?
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Old 01-09-2012, 04:34 PM
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Yep got plenty of fluid
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Old 01-09-2012, 05:15 PM
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See if you can move the output shaft. Unhiik the drive line and try to move it. Might be the rear main bearing?
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