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Old 09-03-2011, 12:48 PM
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It isn't death wobble but it still isn't good

I need some help from the experts. I'm learning as I go.

1999 TJ, 2.5 liter, 4 inch Superlift, the PO said there was some steering upgrade but honestly I couldn't tell you what it is.

About a month ago I bought 4 new 32" BFG AT. I stepped up 1" from the 31" mud tires the PO had on there. The old tires had pretty much worn square and were riding horribly. These new BFG's are smooth and quiet. I had the new tires on a week or so and did a little light wheeling. Nothing too hard just through a field and a couple of gullies to a favorite camping spot. The tires did great. Drove the Jeep everyday back and forth to work for the next week with no problems. The next weekend I went back to the same spot and did the same thing. This time I pulled a utility trailer with some coolers, a table, and a canoe. On the way home I notice a little bit of a click sound when I take off. Doesn't happen every time just sometimes when I go from standing still to moving. The next day I drove it and noticed a vibration in the front end. There is no mud on the wheels and all the weights are still there. It has been progressively getting worse over the past two weeks. The vibration is in the steering wheel and gear shift. It seems to be worse at 35 - 40 MPH and it stops when I let off the gas peddle or push in on the clutch. I don't think it is in the tires because of this. I've crawled under the Jeep and nothing seems broken or out of place.

It isn't Death Wobble. I've had that on a previous Jeep and this isn't that bad but it is still driving me crazy.

I need some HELP!!

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Old 09-03-2011, 01:44 PM   #2
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Check the balance of the tires and alignment since it happened after wheeling, but I suspect it's probably some bushings going bad. It is a 99 TJ with a lift, so its due. I have a 97 and every paycheck I get a new bushing set for one thing or another. The most important ones to watch are track bar, control arm, swaybar and motor mount bushings

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Old 09-03-2011, 02:16 PM
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How do I figure out if the bushings are bad? Remember, you are dealing with someone who has very limited mechanical knowledge. I will check the alignment this weekend, and hopefully check the bushings while I am at it. Can I just go to Autozone and pick up a bushing set?
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Old 09-03-2011, 03:03 PM   #4
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Quote:
Originally Posted by Toofer View Post
I need some help from the experts. I'm learning as I go.

1999 TJ, 2.5 liter, 4 inch Superlift, the PO said there was some steering upgrade but honestly I couldn't tell you what it is.

About a month ago I bought 4 new 32" BFG AT. I stepped up 1" from the 31" mud tires the PO had on there. The old tires had pretty much worn square and were riding horribly. These new BFG's are smooth and quiet. I had the new tires on a week or so and did a little light wheeling. Nothing too hard just through a field and a couple of gullies to a favorite camping spot. The tires did great. Drove the Jeep everyday back and forth to work for the next week with no problems. The next weekend I went back to the same spot and did the same thing. This time I pulled a utility trailer with some coolers, a table, and a canoe. On the way home I notice a little bit of a click sound when I take off. Doesn't happen every time just sometimes when I go from standing still to moving. The next day I drove it and noticed a vibration in the front end. There is no mud on the wheels and all the weights are still there. It has been progressively getting worse over the past two weeks. The vibration is in the steering wheel and gear shift. It seems to be worse at 35 - 40 MPH and it stops when I let off the gas peddle or push in on the clutch. I don't think it is in the tires because of this. I've crawled under the Jeep and nothing seems broken or out of place.

It isn't Death Wobble. I've had that on a previous Jeep and this isn't that bad but it is still driving me crazy.

I need some HELP!!
ok well i dont have an answer for you but i do have the click when i accelorate from a stop. its not loud and not very noticable. is your same click loud or quiet like mine? and does anyone know where to start looking? could it be the bushings making the noise? and id like to ad that i had death wobble and got an alignment and my tires ballanced and it helped significantly but i still get a slight vibration maybe like yours also.
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Old 09-03-2011, 03:57 PM   #5
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u joints on your driveshaft will do this. i just had to replace mine with the exact same symptoms. clicking and shaking when u give it gas. my bet. u joint
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Old 09-03-2011, 04:26 PM
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There doesn't seem to be much play in the u joint. Could that still be the problem?
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Old 09-03-2011, 04:37 PM   #7
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to check the u joint make sure its in neutral. sometimes you will be able to feel the play. sometimes you wont. i couldnt until the u joint actually completely was worn out. may want someone who knows more about it to look at it in person. a friend or somthn.
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Old 09-05-2011, 07:09 AM
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Can I remove the rear drive shaft and run it with just the front? It seems like if the rear u joints were the problem then running with just the front would smooth it out and let me be sure if th u joints are the problem or not
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Old 09-05-2011, 09:07 AM   #9
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yes. but i wouldnt. i would detach it from the rear pinion and run a strap around it to hold it up towards the bottom of the tub to keep it out of the wat and also so that crap doesnt get in your t case. but i wouldnt do it at all really. maybe for a short distance. your still gunna get vibrations because now you rear shaft is just sitting there
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Old 09-11-2011, 08:34 PM
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Okay. I replaced the rear u joint and it smoothed right out. I'm surprised it wasn't vibrating worse than it was. Once I got the thing apart the needle bearings were toast. Also, when I was crawling around under there I noticed that one of my front shocks needs replaced. Time to start saving for that set of OME shocks I've been wanting.

That you everyone for all your help.

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