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Old 02-16-2013, 01:27 PM   #1
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Shake shudder between 50-60mph? Any ideas?

2000 Wrangler

31x10.5s air pressure is usually around 28psi

Tires arent that old maybe 10K miles on them, stock wheels.

Between 50-60mph i have a shudder or vibration in the front end. I never had this when the tired were first installed. And it doesnt seem to do it below 50mph either.

Any idea? Alignment seems OK. Nothing else seems to be vibrating. Time for a tire rotation? Wheels out of balance maybe?

They are Goodyear Authority AT's, from Walmart.

Thanks all..

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Old 02-16-2013, 01:31 PM   #2
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Tire balance. Mine does it between 49-56mph.

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Old 02-16-2013, 01:32 PM   #3
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Track bar?
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Old 02-16-2013, 01:34 PM   #4
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Quote:
Originally Posted by FreezerJeep
Track bar?
Anytime it's a speed related shimmy, it's most likely tire balance

Try rotating your tires and see if it helps. I had my tires rebalanced 3 times before it was good but now the miles are racking up and the tires are shot, the shimmy is back.
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Old 02-16-2013, 01:36 PM   #5
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10k miles without a balance and rotate??...might want to do it sooner/more often....
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Old 02-16-2013, 06:29 PM   #6
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It is very common with the Wrangler, if the tires are not perfectly balanced to shimy between 50-60. I've been there.
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Old 02-16-2013, 06:31 PM   #7
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Quote:
Originally Posted by Neil F.
It is very common with the Wrangler, if the tires are not perfectly balanced to shimy between 50-60. I've been there.
X10 been there almost filled my shorts
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Old 02-16-2013, 08:14 PM   #8
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Quote:
Originally Posted by Jeeplover1

X10 been there almost filled my shorts
Most people mistake a simple unbalanced tire shimmy for full blown death wobble
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Old 02-16-2013, 09:03 PM   #9
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I had the identical issue a month ago. Everyone said re balance tires and mine had just been balanced but was going to do it anyway. However, I replaced my shocks as they were all old and miraculously it went away. That being said, I would try the balance or shocks. If your shocks are old and you want to replace them, try that first. Good luck. And mine did it right at 55mph.
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Old 02-16-2013, 09:07 PM   #10
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I had that same problem in my Bronco. turned out the wheels were out of balance. Had them balanced and problem went away. Hopefully that simple for you.
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Old 02-16-2013, 09:18 PM   #11
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I just bought a 97 SE and the thing did the same thing, 55-60 has a vibe. Balance....yep.
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Old 02-16-2013, 09:24 PM   #12
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when you are driving, does the condition change when you push the clutch in and hold it? Does it continue as you climb in speed, in other words does it smooth out after 60mph?

If the shaking dies down if you depress the clutch pedal you should have your CV/UJ's checked.
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Old 02-17-2013, 03:15 PM   #13
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the first thing to do is have the balance checked and that will take that and the possible broken tire band out of the list of could be's.

if you still have the problem check and make sure the track bar is tight.

have someone turn the steering wheel while you look up under the frt and look for loose and moving joints that should be tight ( tie rods,track bar,.........)

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