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Cherokee vibrations from 50-60 mph
07-05-2015, 04:05 PM
Post: #1
Cherokee vibrations from 50-60 mph
having some pretty bad vibrations between 50-60. I'm really frustrated and get impatient with trying to figure this out. It's my daily driver so I can't have it out of commission, which requires me to continue to drive it as is everyday. I replaced one of the rear driveshaft u joints that was worn, transmission mount and had the tires rebalanced. I'm sick of throwing money at it and not having anything change, anyone got any idea what it could be? Thanks all
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07-05-2015, 06:03 PM
Post: #2
RE: Cherokee vibrations from 50-60 mph
Your pinion angle.

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07-05-2015, 06:14 PM
Post: #3
RE: Cherokee vibrations from 50-60 mph
I thought about that but I'm thinking its something else, the pinion angle has been the same since the lift and it used to drive fine without vibrations. I guess that the weight from the tire carrier that sagged the rear could have changed that so I'll double check and see what I find
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07-05-2015, 06:22 PM
Post: #4
RE: Cherokee vibrations from 50-60 mph
Just keep in mind driveline vibrations get worse over time. You could have not her issue but...

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07-05-2015, 06:37 PM
Post: #5
RE: Cherokee vibrations from 50-60 mph
pinion angle is 13* and output from transfer case is 7*. Just had driveshaft balanced and u joint replaced at fleet pride. Are those differences in angle too much, or enough to cause the vibrations I'm getting? Everything I read on jeep forums points to tire balance when it vibrates between 50-60, but assuming it was done correctly that factor should be eliminated with the tire balance I got last week...
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07-05-2015, 07:13 PM
Post: #6
RE: Cherokee vibrations from 50-60 mph
If you shift it into neutral at that speed, does the vibration go away?

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07-05-2015, 07:24 PM
Post: #7
RE: Cherokee vibrations from 50-60 mph
Maybee a drive shaft is out of balance, what are the vibrations like? It's not death wobble is it? Slight death wobble could be as minor as a shimmy felt in the wheel.

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07-05-2015, 07:30 PM
Post: #8
RE: Cherokee vibrations from 50-60 mph
another thing I noticed is that going down the highway if I'm going around a bend in the road at 50-60 the vibes go away, but return when I start going straight again...
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07-05-2015, 09:29 PM
Post: #9
RE: Cherokee vibrations from 50-60 mph
(07-05-2015 06:37 PM)yellowx16 Wrote:  pinion angle is 13* and output from transfer case is 7*. Just had driveshaft balanced and u joint replaced at fleet pride. Are those differences in angle too much, or enough to cause the vibrations I'm getting? Everything I read on jeep forums points to tire balance when it vibrates between 50-60, but assuming it was done correctly that factor should be eliminated with the tire balance I got last week...

http://www.upstate4x4.com/thread-437.html

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07-05-2015, 09:31 PM
Post: #10
RE: Cherokee vibrations from 50-60 mph
Is the vibration only when you're on the gas? Get on the freeway. Do what Matt said and shift it into neutral and see if it goes away. Also try just letting off the gas and see if it goes away.

Then get back with us.

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