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Old 11-24-2010, 04:38 PM   #1
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Red face new rear tires = death wobble?

just replaced my back tires on my wrangler and when i get up to 55-70mph the rear end starts swinging back and forth and hard to control the jeep. the new tires are the same as the old ones. any idea what is going on and what to do?

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Old 11-24-2010, 04:44 PM   #2
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balance.

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Old 11-24-2010, 04:49 PM   #3
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they were balanced i called my mechanic when i got home and he said they were balanced. friday i'm going to bring it back in.
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Old 11-24-2010, 04:53 PM   #4
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check ur tire pressure!!..if my rears have less/more psi than the front shes all over the road!!..i run 25 psi all round!...
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Old 11-24-2010, 04:55 PM   #5
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Ill go check it out
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Old 11-24-2010, 06:06 PM   #6
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When they put it on the hoist they may have broken the trac-bar mounts.
Slide under and look.
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Old 11-24-2010, 06:46 PM   #7
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I checked the psi and its fine.
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Old 11-24-2010, 06:51 PM   #8
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I checked the psi and its fine.
put tires in the front see if the front wobbles.
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Old 11-24-2010, 07:09 PM   #9
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Tracbar mounts are fine. Ill switch around the tires tomarow
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Old 11-25-2010, 09:02 AM   #10
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check ur front wheel hub bearings..when jeeps on level ground u can see one or both wheels will be leaning into ur fender at the top...(not level!) jack it up and wobble the wheel by hand..it should only move a little!!..if sloppy and clonky..its time to replace!!
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Old 11-25-2010, 09:04 AM   #11
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my vote would be balance. Had a new set put on my ZJ.. had to go back and re-balance all was fine.
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Old 11-25-2010, 03:58 PM   #12
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Quote:
Originally Posted by birtydugger
check ur front wheel hub bearings..when jeeps on level ground u can see one or both wheels will be leaning into ur fender at the top...(not level!) jack it up and wobble the wheel by hand..it should only move a little!!..if sloppy and clonky..its time to replace!!
How does the rear tire replacement have to do with the front end of my Jeep?
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Old 11-25-2010, 09:44 PM   #13
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FYI "Death Wobble" is not in the rear end.
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Old 11-25-2010, 11:11 PM   #14
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How's the rear swaybar look? Maybe a bushing is worn?
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Old 11-26-2010, 12:37 AM   #15
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haven't taken a good look yet, gonna bring it to my mechanic friday to get it checked, he said he would toss in a free oil change and fluid change on the trans, transfercase, and both diffs.
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Old 11-26-2010, 12:41 AM   #16
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just replaced my back tires on my wrangler and when i get up to 55-70mph the rear end starts swinging back and forth and hard to control the jeep. the new tires are the same as the old ones. any idea what is going on and what to do?
Improperly installed, or missing wheel weight. That might be a possibility.
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Old 11-26-2010, 12:42 AM   #17
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my vote would be balance. Had a new set put on my ZJ.. had to go back and re-balance all was fine.
I agree. That would be the first ( and cheapest ) place to start.
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Old 11-26-2010, 04:46 PM   #18
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I agree. That would be the first ( and cheapest ) place to start.
Had the tires remounted and rebalanced and that has not solved the issue. My mechanic said it was be because the tires have a "crown" and are not evenly flat on the ground and said that is what I am feeling. He said if it isn't better by Monday he will take a better look. But he did check the rear swaybar and trackbar and it looked ok
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Old 11-26-2010, 10:12 PM   #19
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And these tires are new???? I'd take 'em back.

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