rear end, drive shaft question - JeepForum.com

 
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post #1 of 7 Old 04-28-2014, 02:12 PM Thread Starter
kcmike
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rear end, drive shaft question

stated having a vibration a few days ago, checked u-joints and everything fine there. took back tires off and checked out the shaft end play, about 1/16 in. rotated wheel hub and noticed drive shaft not turning, sometimes a little. I thought everything in there is geared. jeep has been driving good up until the vibration started. could the pin be worn or broke? thanks

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post #2 of 7 Old 04-28-2014, 02:17 PM
biffgnar
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Unless you put things in neutral, your rear driveshaft is locked by the transmission/tc being in park. Presumably you had both tires in the air and the opposite wheel from the one you turned also turned.

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post #3 of 7 Old 04-28-2014, 02:39 PM Thread Starter
kcmike
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jeep is 5 spd. yes transmission is in neutral. yes the opposite tire turned.
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post #4 of 7 Old 04-28-2014, 02:58 PM
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Quote:
Originally Posted by kcmike View Post
jeep is 5 spd. yes transmission is in neutral. yes the opposite tire turned.
If things are in neutral then have somebody hold that other tire still and then your driveshaft will turn when you turn the wheel.

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post #5 of 7 Old 04-29-2014, 09:02 AM Thread Starter
kcmike
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thanks, just thought things were different. read a few other posts and it didnt register at first.
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post #6 of 7 Old 04-29-2014, 12:04 PM
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Quote:
Originally Posted by kcmike View Post
stated having a vibration a few days ago, checked u-joints and everything fine there. took back tires off and checked out the shaft end play, about 1/16 in. rotated wheel hub and noticed drive shaft not turning, sometimes a little. I thought everything in there is geared. jeep has been driving good up until the vibration started. could the pin be worn or broke? thanks
As for the vibration, try removing one drive shaft at a time and test driving the Jeep. If the vib goes away, you know you your issue is with that drive shaft.

Try rotating you tires back to front. If the vibration changes or goes away, you can get your tires balanced. If none of that works you'll want to look at axle U-Joints? Hopefully you track down the issue with one of the first two suggestions. Good Luck and let me know if you have any questions!

-Ryan

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post #7 of 7 Old 04-30-2014, 10:01 AM Thread Starter
kcmike
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took drive shafts apart, u-joints looked good,no slop at all. rotated tires, found spare tire loose. tightened everything good. the spare tire being loose can really cause a good vibration. should there be any shaft end play in the rear axle?
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