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Old 03-10-2012, 05:40 PM
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Pinion bearing...

Recently my wk (4.7, 2005) has developed a hum in the front end, normally around 20-40 mph and then it goes away. I was told maybe a pinion bearing..... any thoughts, or ways to diagnose this.
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Old 03-10-2012, 11:45 PM
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Re: Pinion bearing...

is it a little more high pitched, and not so much goes away just gets high enough that it kinda sounds like it goes away?
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Old 03-11-2012, 12:46 PM
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I wouldn't say its high piched, its like a low hum that seems to go away over 40-45 mph

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Old 03-11-2012, 04:00 PM
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Re: Pinion bearing...

try this for help


http://jeepgarage.org/showthread.php?t=31991
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