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Unread Yesterday, 08:31 AM   #1
JDG98TJ
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How much "sway" does your jeep have at highway speeds?

I've always attributed it to just being a lifted jeep. But I wanna know how much sway other jeeps have, my tj is a 98, 4.5" RE SA lift with RE ADJ Track bars. 35's BFG AT's and I can barely keep it between the lines.

So here's what I've done so far. New ball joints, wheel bearings, u joints, anti rock, tightened all bolts, and adj. the front sway bar, balanced tires, and had it aligned. I'm stumped

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Unread Yesterday, 08:47 AM   #2
Imped
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Take a head on picture of your Jeep--make sure the pitman arm, track bar and both knuckles are in the picture.

How do you control arm bushings/joints look?
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Unread Yesterday, 09:13 AM   #3
Jerry Bransford
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And make sure we can see how much 'drop' the Pitman arm has which requires a pic of it from the side.
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Unread Yesterday, 09:41 AM   #4
biffgnar
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When you had it aligned, what was the caster? What pressure do you run in your tires?
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Unread Yesterday, 01:56 PM   #5
JDG98TJ
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Will do, tp around 32-35, and control arm bushings are still good no cracks or rips.
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Unread Yesterday, 01:57 PM   #6
JDG98TJ
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Caster was in the red but not by much. Just barely.
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Unread Yesterday, 02:16 PM   #7
biffgnar
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Quote:
Originally Posted by JDG98TJ View Post
Caster was in the red but not by much. Just barely.
Red based on what standards? The stock numbers in their computer or range adjusted for bigger tires? And what exactly was the number? I'd say take your tire pressure down to 24 are and get your caster out to around 6 and I bet you see a material difference in handling.
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Unread Yesterday, 02:21 PM   #8
JDG98TJ
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Prob for a stock jeep standards and I'll look for the paper for the degrees, How do you ADJ camber on a jeep? Also will try the 24 psi
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Unread Yesterday, 02:24 PM   #9
biffgnar
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Quote:
Originally Posted by JDG98TJ View Post
Prob for a stock jeep standards and I'll look for the paper for the degrees, How do you ADJ camber on a jeep? Also will try the 24 psi
Camber is generally not adjustable. Well, there are offset ball joints, but they are more of a replacement part rather than an adjustment. Do you have a camber issue also?

What you describe for handling sounds like a caster problem. For minor adjustments cam bolts can be used on the front lowers, but with an RE 4.5" (that's potentially giving you even more than that with their springs) you need to use adjustable control arms to put caster back in.
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Unread Yesterday, 03:21 PM   #10
JDG98TJ
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TP adjusted to 25 and here's the pics. I can't find my papers for the alignment. Should I get another one to get the specs or is there some other things I can try first?
image_1414185550496.jpg   image_1414185565836.jpg   image_1414185577497.jpg  
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Unread Yesterday, 03:23 PM   #11
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Drop pitman arm is generally an automatic sign of ignorance. Post a picture of the frame side track bar mount.
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Unread Yesterday, 03:24 PM   #12
JDG98TJ
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A little better pic
image_1414185867122.jpg  
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Unread Yesterday, 03:28 PM   #13
JDG98TJ
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What do you mean by an automatic sign a ignorance?
image_1414186128806.jpg  
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Unread Yesterday, 03:29 PM   #14
Imped
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I can't see the track bar mount but judging by the angle, it's not dropped.

EDIT: You just posted the picture. The drop pitman arm is your problem.

Have someone turn the steering wheel while you watch below--start nearest to the wheel (steering shaft) and work your way down to the steering box (input = output?) and so on to every joint, including the track bar. If you have play then that will translate to difficulties for you. Knowing your actual caster would be beneficial to us as well.
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Unread Yesterday, 03:30 PM   #15
JDG98TJ
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BTW that's LPS3 on the heim, A/C Grade Corrosion inhibitor
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