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Old 06-10-2014, 08:19 AM
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sway or wandering?

I lifted my Jeep with a 2.5" spring lift. New isolators, extended front links, new gas shocks, JKS TB, secondary SS, all new TRE's. alignment, everything checks out good for the ball joints. Been having some bumpsteer and quick wobble out of the front passenger tire on bumps. I swapped the front shocks to see if it is a bad shock (as advice from CheapJeep)...no difference. I also have some moderate sway or wander on the highway, most notable when I run on a pavement seam or road variance.

I have been kicking around the idea of getting a set of front LCA"S. I was thinking that getting a set of fixed arms from Rusty's would eliminate some of the problem. I removed and inspected the upper front control arms and the bushings look pristine. The front right lower axle side bushing has some dry rot and visible stress cracks in the goofy oval bushing. My thought is that those bushings have quite a bit of movement in them even when brand new. Should I get the aftermarket arms with the solid rubber bushings or just pop a new set of OEM arms on the lower front? I think the rears move alot as well as I can actually see them going back and forth if I rock the truck in park. I'm talking they move a half inch back and forth. Would the aftermarket arms with solid rubber bushings make enough of a difference to be worth the money? I always hated the sloppy road manners of the truck before I lifted it. I like a truck to feel more precise on the road. Anyone else put arms on with that size lift? Did it help? Truck has 39,000 miles. Thanks.
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Old 06-10-2014, 09:11 AM
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Re: sway or wandering?

Did you check the rear A arm bushings and ball joint as well? The bushings tend to wear out over time. When this happened on mine, I had to constantly adjust the steering a bit to to counteract the swap. Very bad driving like this.
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Old 06-10-2014, 09:18 AM
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Re: sway or wandering?

Yea, I was under there and checked the A-arm. Although pretty rust covered, the bushings seem solid and I could not get detectable movement. I guess my question is do the aftermarket LCA's with the solid rubber bushings make much difference versus the OEM oval "wobbly" bushing? I know that Jeep designed them that way for a smooth ride. When lifted, it changes the angle of the oval bushing. Not to mention that they are cracking on my truck. Thanks for the hint. I know I will be doing the rear A-arm eventually if I keep the truck long enough.
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Old 06-10-2014, 09:24 AM
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Re: sway or wandering?

One member on here just ordered poly bushings for the A arm. Waiting for his comment on how these perform.
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Old 06-12-2014, 11:42 AM
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Re: sway or wandering?

I have been talking to Tony at Rusty's about some fixed LCA's. My thought is the solid rubber OEM type bushings should make the truck drive more precise. I think the WJ's sloppy handling is inherent in the design of the axle end bushings on front and rear factory LCA's. I have NO plans to lift the truck any further, so adjustables are not needed. If they improve the front end I will get a set for the rear as well.
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Old 06-12-2014, 01:32 PM
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Re: sway or wandering?

Are those standard length LCAs? I have a similar problem on my '04 and I would bet the farm on the suspension bushings. Got my eye on that thread too.
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Old 06-12-2014, 03:26 PM
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Re: sway or wandering?

Rusty's will make them to length based on your amount of lift. A small amount of increase makes a big difference in caster. You just better be content with the amount of lift you have. I know I am. My wife and daughter are short. Haha
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Old 06-12-2014, 08:28 PM
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Re: sway or wandering?

I am going UC springs and new isolators and 10 MM OME spacers. That will be enough and I am sure my short wife will have something to say about it.
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Old 06-12-2014, 09:42 PM
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Re: sway or wandering?

Well I got 3" of lift out of it. Good thing the grab handle is there. Still, I hear a comment every time she gets in and every time she gets out. Good thing I only went with a 30" tire.
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Old 06-13-2014, 08:56 PM
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Re: sway or wandering?

Got an alignment print out. After lifting it with 2.5 FatBob/Rusty coils and new isolators my caster is sitting right at 4.5 degrees. The acceptable range for a WJ per factory is 6.0-7.5 degrees. Now I just gotta get ahold of Tony at Rusty's and get some front LCA's. I'm curious of how much caster I can reclaim without sacrificing the pinion angle. Anybody have the knowledge in that? I'd like to get the most benefit without going too much and causing more problems.
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Old 06-13-2014, 10:32 PM
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Re: sway or wandering?

Since you have an '04 you have the good front driveshaft but I'd still be conservative.Me,I wouldn't try to go much past 6 deg to try and keep the vibes in check. Here's some good driveshaft angle info from the fsm.
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File Type: pdf Driveshaft.pdf (1.02 MB, 6 views)
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Old 06-28-2014, 10:34 PM
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Re: sway or wandering?

I got my LCA's from Rusty's. I had them make me the clearance arms so I can run stock wheels without spacers. Install was pretty easy except for getting the second bolt in. I had to jack up the subframe and push the rear tire with my feet while pushing the front tire with my hands. Once I got it rocking I took one hand and shoved the rear bolt through when the hole lined up. The oval bushings in my stock LCA's was shifted toward the front. The new LCA's made a HUGE difference in the wandering. They have genuine CLEVITE bushings of solid rubber. First impression is that it solved all my bumpsteer, wobble and wandering issues. The oval bushings in the stock LCA's are not designed to work at an angle. At stock height they are level. Anybody doing more than a BB should seriously look into a set of aftermarket front LCA's. To get the clearance arms for a WJ you need to call them. They do not show them on the website. Ask for Tony and tell him that Greg from Pittsburgh told you about them. One glitch is that the axle side needs a washer on both sides of the bushing to take up the gap. The oval bushing in the stock LCA's is wider that the bushing on the Rusty's arms. Get the yellow plated washers so they will not rust away and cause problems down the road. I will post pics when I get a chance to climb back under there. I am going to get a set for the rears when I save up a few bucks. I know that the oval bushings in those are crap too. I can see them move when I rock the truck in park. That should really firm up the handling even more.

This is what they look like:
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File Type: jpg newLCA.jpg (21.4 KB, 11 views)
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