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Need HELP: Toe and caster angle for 33s/ 34s

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Old Jan 17, 2009 | 09:19 AM
  #1  
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Default Need HELP: Toe and caster angle for 33s/ 34s

Guys, need your help here. Since installing 33s in the summer I've been experiencing some light death wobble. My dealer says that everything with the suspension and steering is all right. They have also made the wheel alignment, however, this did not help.

Now, after reading some posts on this forum, I'm starting to think that the problem is with the toe and caster angle.

Please advise what should be the toe and caster angle with 33s/ 34s (planning to install 34s next summer) to run smoothly.

Thanks in advance!!!

P.S. As I understand, the camber angle should remain stock in any case.

Last edited by tamino; Jan 17, 2009 at 09:23 AM.
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Old Jan 17, 2009 | 09:53 AM
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You should also make sure your wheels are balanced. Unbalanced tires will give it a slight wobble. It happens to me everytime I get snow or mud packed in the rim.
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Old Jan 17, 2009 | 09:54 AM
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If you still have the stock suspension, I wouldn't think castor is an issue in that this is fixed from the factory. This is only adjustable with aftermarket control arms. If you were aligned and the toe was in spec, not sure that would be the problem either. I have messed with the casotr angle on my 2 door and have a lift with control arms. The 35s on mine do make the jeep a little flightly at 4 degrees of castor which is about the stock setting. I am now at about 5.5 degrees and things seem much better.

There are many on here who will offer up advice on the death wobble issue - even on the stock suspension.
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Old Jan 17, 2009 | 10:15 AM
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What do you mean by "light death wobble"? I've not personally experienced death wobble, but the way I understand it, it's a very violent shaking that feels like the whole Jeep is coming apart. I don't think are are different degrees of death wobble. Someone please correct me if I'm wrong
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Old Jan 17, 2009 | 10:34 AM
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Originally Posted by Buster
You should also make sure your wheels are balanced. Unbalanced tires will give it a slight wobble. It happens to me everytime I get snow or mud packed in the rim.
Thanks for your feedback. I've my wheels balanced from time to time but that does not resolve the problem either.

Originally Posted by kflash
If you still have the stock suspension, I wouldn't think castor is an issue in that this is fixed from the factory. This is only adjustable with aftermarket control arms. If you were aligned and the toe was in spec, not sure that would be the problem either. I have messed with the casotr angle on my 2 door and have a lift with control arms. The 35s on mine do make the jeep a little flightly at 4 degrees of castor which is about the stock setting. I am now at about 5.5 degrees and things seem much better.

There are many on here who will offer up advice on the death wobble issue - even on the stock suspension.
Thanks for your feedback. As I understood from some posts on this forum, stock toe is set to 0, which can actually cause the death wobble. Setting the toe in 1/8' resolves the problem on wheels larger then stock.

By the way, I'm planning to install TF 2.5 coil lift next summer. Do you recommend also putting on the adjustable control arms?

Originally Posted by ScottK
What do you mean by "light death wobble"? I've not personally experienced death wobble, but the way I understand it, it's a very violent shaking that feels like the whole Jeep is coming apart. I don't think are are different degrees of death wobble. Someone please correct me if I'm wrong
Thanks for your feedback. I have slight vibrations starting at approx. 30-35 mph. But I can not say that my car is coming apart. I just did not have those vibrations before installing 33s and the ride was very smooth.
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Old Jan 17, 2009 | 12:34 PM
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Death wobble is just that, death wobble. There is no "almost".
I'd check the driveline. Or maybe it is the tires themselves.
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Old Jan 17, 2009 | 01:30 PM
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I suggest you play with the air pressure first, and check your toe, also check and make sure your frt track bar is torqued and steering stabilizer is good . Honestly , with what your describing, as said before, usually if your getting a vibe at a certain speed and it goes away after that speed, it's driveshaft or tire oriented.
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Old Jan 17, 2009 | 04:15 PM
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Originally Posted by Dr.McNinja
Death wobble is just that, death wobble. There is no "almost".
I'd check the driveline. Or maybe it is the tires themselves.
Originally Posted by mkjeep
I suggest you play with the air pressure first, and check your toe, also check and make sure your frt track bar is torqued and steering stabilizer is good . Honestly , with what your describing, as said before, usually if your getting a vibe at a certain speed and it goes away after that speed, it's driveshaft or tire oriented.
Thanks! What could that be with the driveshaft? What and how should be checked?
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Old Jan 18, 2009 | 09:08 AM
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I would look check your end cv bearing type joints to see if there is any play and also if either is throwing grease. . As for the weights on the DS, they look like little squares with a hole in the middle . They are about an inch square. Look for blank looking spot where one may have come off. This will make more since when you look at the DS.
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Old Jan 18, 2009 | 10:14 AM
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Originally Posted by mkjeep
I would look check your end cv bearing type joints to see if there is any play and also if either is throwing grease. . As for the weights on the DS, they look like little squares with a hole in the middle . They are about an inch square. Look for blank looking spot where one may have come off. This will make more since when you look at the DS.
Thanks for your great feedback!!! I've taken my JK back from my dealer that made the regular 20,000 kilometer maintenance today. They have checked the suspension/ steering again and everything is in place and there is no play, but I'm not sure whether they have checked the DSs since I haven't told them to do that. They have also balanced the wheels. Still there are some vibes between 35 and 55 mph.

I'll check the DS during the next weekend! Hope that this is where the vibes come from!
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