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Old 03-26-2012, 10:52 PM   #1
Keith509's Avatar
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Location: New Jersey
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New UJoints - Wobble...

Hello. I have a 91 YJ 2.5L with a lift(not sure of exact size) and 33x9.50 BFG. I've had the jeep for about a month now. It rode fine. The steering always had some slight play, and it's off center, meaning that when holding it directly centered, the jeep will steer to the right slightly.

Anyway, I needed front axle ujoints, on both sides. I had OK4WD install them. The new ones on there are great, and tight(no play). It rode fine the day I had it done, which was Saturday.

Now today, I noticed something new. When driving around 45MPH to 50MPH, and if you hit a bump, the steering wheel wobbles side to side. I'm sure it's not death wobble, however, it's still a bit scary. It seems to stop if you slow down. As long as I don't hit any bumps, it won't wobble.

Would you suggest an alignment(I'm pretty sure it needs one)? I'm going to call the shop tomorrow and see if they can check it out, since the problem existed after the uJoints were installed.

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Old 03-26-2012, 11:15 PM   #2
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does stepping on the clutch while maintaining speed make any difference?

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Old 03-27-2012, 01:48 AM   #3
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Mine did that before i installed my "drop" pitman arm. If your draglink is not level with the ground then you will get this.
Its called "bumpsteer"
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Old 03-27-2012, 07:09 AM   #4
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The clutch does not have any effect on this. I just don't understand why this issue suddenly appeared. It has been lifted for a while now, and after doing the ujoints, it has this wobble. I'm going to have the wheels aligned today, regardless. I'll see what that does.
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Old 04-01-2012, 06:23 PM   #5
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The front trackbar bolt was pretty loose. Near hand tightened. After being tightened, the ride has little to no wobble. It feels good again.

I noticed I'll need front bearings on both sides. So 2 new hubs are going to be ordered. The wheels feel noticeably loose. You can feel the play in the wheels by shaking them when lifted up.

However, the wobble is gone for the most part. I should've checked these bolts before hand
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Old 04-01-2012, 09:40 PM   #6

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Fwiw, I don't run track bars.. no wobble or bump steer. when you say the tires move.. is it the hub or the ball joint that is moving?
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Old 04-02-2012, 01:55 AM   #7
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I'm pretty sure it's the bearings. I watched the balljoints are I shook the wheel and they didn't move.

That's odd though, I thought trackbars were needed. Well, I guess the tightening of mine masked the problem, at least till I fix the loose wheel.

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