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 Post subject: Transfer case noise
PostPosted: Thu Jun 18, 2015 11:10 am 
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RDJP Member

Joined: Sun Apr 14, 2013 9:44 pm
Posts: 244
Location: Red deer ab.
Recently my tcase has been making a whiring noise. I only notice it when I'm in 4th and 5th gear and only if I have a small amount of throttle. I have the np241or. It started after I changed the rubber washer on the rear output. Wondering if torque on the output nut could cause noises in the tcase. Anyone have any suggestions? Anyone know the specific torque for the rear output nut on a np241or?


Two tone blue 2000/04 tj. Rubicon tcase, truetrac, Aussie locker, and some bits and pieces.


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 Post subject: Re: Transfer case noise
PostPosted: Thu Jun 18, 2015 12:52 pm 
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Joined: Sun Apr 14, 2013 9:44 pm
Posts: 244
Location: Red deer ab.
Update: put the jeep on jack stands and found the noise is comf from the rear diff. Only thing I've changed since the noise started is pinion angle with adjustable control arms. I'm confused now.


Two tone blue 2000/04 tj. Rubicon tcase, truetrac, Aussie locker, and some bits and pieces.


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 Post subject: Re: Transfer case noise
PostPosted: Fri Jun 19, 2015 7:57 am 
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Joined: Wed Oct 03, 2012 11:03 am
Posts: 307
Location: Penhold
The diff was just done wasn't it?


Jeeps are like LEGO...build it...play with it...break it...build it again!

'98 TJ/Custom long arm/3 link front/4 link rear with 15" of stretch. 6" in the front and 9" out back.
A Dana 60 front (lincon locker) Sterling 10.5 rear (LS) with cutting brakes on the rear. 5.38 gears. 37" Boggers


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 Post subject: Re: Transfer case noise
PostPosted: Fri Jun 19, 2015 2:29 pm 
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Joined: Sun Apr 14, 2013 9:44 pm
Posts: 244
Location: Red deer ab.
Last year the gears were done. Wheel bearings were a month or so ago. So just about everything in there is brand new. I'm changing fluid to see if it might make a difference. I noticed the pinion yoke has some rotational play in it. I don't know enough about diffs to know if its normal.


Two tone blue 2000/04 tj. Rubicon tcase, truetrac, Aussie locker, and some bits and pieces.


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 Post subject: Re: Transfer case noise
PostPosted: Fri Jun 19, 2015 5:32 pm 
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RDJP Member

Joined: Wed Oct 03, 2012 11:03 am
Posts: 307
Location: Penhold
Bring it back to who did your gears....they should cover it.


Jeeps are like LEGO...build it...play with it...break it...build it again!

'98 TJ/Custom long arm/3 link front/4 link rear with 15" of stretch. 6" in the front and 9" out back.
A Dana 60 front (lincon locker) Sterling 10.5 rear (LS) with cutting brakes on the rear. 5.38 gears. 37" Boggers


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 Post subject: Re: Transfer case noise
PostPosted: Fri Jun 19, 2015 5:39 pm 
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Joined: Sun Apr 14, 2013 9:44 pm
Posts: 244
Location: Red deer ab.
4wheel parts... I didn't get the extreme warrenty. Looking back I really wish I did cause of all the issues.


Two tone blue 2000/04 tj. Rubicon tcase, truetrac, Aussie locker, and some bits and pieces.


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 Post subject: Re: Transfer case noise
PostPosted: Fri Jun 26, 2015 10:20 pm 
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Joined: Sun Apr 14, 2013 9:44 pm
Posts: 244
Location: Red deer ab.
Update: narrowed the noise down. It only happens 60kmh+ and when there is no load on the drivetrain. So in neutral or with very little gas when in gear it'll make noise. It also gets louder once everything has warmed up.

Here's a video of the sound.

http://youtu.be/0MRHtv0MzaQ


Two tone blue 2000/04 tj. Rubicon tcase, truetrac, Aussie locker, and some bits and pieces.


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