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Old 08-25-2010, 01:39 PM
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New Noise

Okay folks, here is the senerio. I have a 97 TJ with a 4cyl 5 speed stick. 3 days a go I was driving down the highway when something "WENT". I had normal top off highway jeep noises and then at 65 mph a new loud high pitch noise appeared instantly. I first thought it was an alt. or water pump bearing noise. But then realized it was a driveline noise.Upon aceleration or deceleration it goes away. It sounds like a dry bearing. It is there in all gears but worse in the higher gears. As I push the gas peddle down and up it comes and goes. I thought maybe it was a pinion input shaft bearing. I tore the rear diff. apart and found nothing. Installed all new bearings throughout along with new u joints and put her back together. Same thing. So Today I pulled the trans and tranfer case out looking for a bad bearing. All fluids are clean and grit free. i can not find a bad bearing in either the trans or tranfer case. Chain looks good, no slack. I hate to put this thingback together without a fix. If nothing else I putting in new seals and a clutch kit. Any input would be greatly appreciated. Thanks, Dave
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Old 08-26-2010, 06:35 PM   #2
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i had same thing happen and it turn out to be a ripped tranny mount take a look worth the time.
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