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Old 02-08-2014, 03:26 PM   #1
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Front Axle Center

I am currently having issues with my coil springs swaying or bowing out. Both are leaning towards the same direction. It almost looks like the front axle is not centered under the jeep. I have a 4" suspension lift. Just a basic lift with shocks and springs. Everything else stock. Would a adjustable track bar correct this? Would it move the axle to the correct position? Been going on for a year now. No alignment or tire wear issue. Help?

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Old 02-08-2014, 03:40 PM   #2
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Think about it this way. Before a lift is installed, your track bar is positioned relatively horizontal. As you lift your wranglers body, the axle still remains in the same place, but the body is now higher and has shortened the Track Bar, and has changed the geometry.
So yes a adjustable bar should straighten out your axle to body alignment, or maybe just a drop bracket mount, to get your Track Bar horizontal once again!

There also maybe some other steering components that also need replacing when doing this.
Kjeeper10 is the expert in this area. Hopefully he will fill you in as to what else will be needed.

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Old 02-08-2014, 04:19 PM   #3
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Yes, the thought has crossed my mind to replace it. Do they make a trackbar drop bracket? If I install a adjustable track bar should I also install a drop pitman arm for steering. Would it help to have the draglink and track bar more horizontal vs angled?
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Old 02-08-2014, 04:23 PM   #4
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At 4" lift you are a candidate for a draglink flip. I.e.,AEV draglink flip and Trackbar relocation bracket. And yes, an adjustable Trackbar will let you dial the front diff housing into center position.

So with that basic lift, is there anything to address the rear axle offset? What about stabilizer end links, bumpstops and brakelines.
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Old 02-08-2014, 04:34 PM   #5
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Yes, the thought has crossed my mind to replace it. Do they make a trackbar drop bracket? If I install a adjustable track bar should I also install a drop pitman arm for steering. Would it help to have the draglink and track bar more horizontal vs angled?
Drop pitman arm is a bad idea on the Jk. When you do the draglink flip you also have to raise the lower Trackbar bracket or use a front Trackbar drop bracket, whatever it takes to keep the Trackbar and draglink parrallel.

You could get away with just an adjustable front Trackbar but it will handle so much nicer with the flip kit.
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Old 02-08-2014, 05:07 PM   #6
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I have the ProComp four inch lift that came with springs, shocks, end links and longer or extended brake line mounts. It also came with the rear track bar relocation kit. I also have the basic ProComp shocks. I am scratcing my head here. My rig rides like a tractor. When you hit a bump it tries to throw you through the roof. Is it my springs or shocks? I understand that Jeeps have a "not so smooth" reputation. This is only my second Jeep. Any suggestions? Thanks for the info on the tracbar.
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Old 02-08-2014, 05:22 PM   #7
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I have the ProComp four inch lift that came with springs, shocks, end links and longer or extended brake line mounts. It also came with the rear track bar relocation kit. I also have the basic ProComp shocks. I am scratcing my head here. My rig rides like a tractor. When you hit a bump it tries to throw you through the roof. Is it my springs or shocks? I understand that Jeeps have a "not so smooth" reputation. This is only my second Jeep. Any suggestions? Thanks for the info on the tracbar.
Procomp has a "not so smooth" reputation. Honestly, I dare to say its both, the coils and shocks. But, for the sake of it, I will say that if you change the shocks for something softer you may get a better ride based on what I've read, heard and experienced with procomp shocks. Another factor may be the control arm angles at 4" of lift. Centering the axle may also help with the ride as the control arms will not be forced to a side position and the trackbar won't be "forced" into keeping the axle in a position its not supposed to be.

As others have suggested. You may be better off using a raised trackbar bracket with an adjustable trackbar at the front coupled with a flipped drag link. Also doing something about the control arms lengths and caster angle, as in getting brackets or adjustables arms if the kit did not come with anything to correct that.

The kit is missing quite a few things to be 4".
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Old 02-08-2014, 05:51 PM   #8
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My rear springs look just a little twisted but I think it's normal
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Old 02-08-2014, 06:12 PM   #9
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I made the mistake up purchasing a cheap lift. Any suggestions on how to upgrade what I have? Should I replace shocks? Springs and Shocks? If the shocks need to go what should I go with?
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Old 02-08-2014, 07:55 PM   #10
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This happens with any lift to some degree but higher quality lifts (ProComp is not one of them) include a myriad of well engineered brackets to correct the geometry. You can also resolve it with a adjustable track bar. JKS, TF and Synergy all make good products. TF even makes the mother of all track bars. Many of us just look at the big heavy duty components like coils, CAs and price when selecting selecting a lift kit. The coils and shocks are important but so are all those little bent metal brackets included with some kits. For the manufacturers of low end budget kits its cheaper to throw in some "tough" looking CAs than to do the engineering and manufacturing required to design and build the brackets.

The track bar literally operates as a swing arm that holds the axle in place laterally. It is connected to a pivot point on the chassis and to the axle on the other end. When you lift the the chassis the axle swings underneath the Jeep towards the pivot on the chassis because it is fixed in length. This shifts the whole axle slightly sideways which moves the coil spring perches in the same direction. The coils follow the perches and end up leaning.The CAs must also move sideways so the bushings or joints end up in a skewed position. The adjustable track bar will correct both.

BTW, a similar effect happens longitudinally with the axle and the CAs. The axle is moves towards the center of the Jeep. And that wasnt enough the axle rotates because the CAs are not the same length. It is not as noticeable unless you have a large lift like yours. Eight adjustable CAs can mostly correct this condition.
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Old 02-08-2014, 09:15 PM   #11
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Thanks for the info guys. I will start with the adjustable track bar. Will I need a bracket too?
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Old 02-08-2014, 09:44 PM   #12
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Not for an adjustable trac bar. The brackets are used with the stock trac bar.
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Old 02-08-2014, 09:54 PM   #13
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Thanks for the info guys. I will start with the adjustable track bar. Will I need a bracket too?
Only use a front Trackbar bracket if you are doing a draglink flip or you will have bumpsteer.
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Old 02-08-2014, 09:54 PM   #14
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Not for an adjustable trac bar. The brackets are used with the stock trac bar.
Brackets can also be used with an adjustable trackbar and a flipped drag link for improved steering.
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Old 02-09-2014, 07:07 AM   #15
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thanks
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Old 02-09-2014, 07:32 AM   #16
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Front Axle Center

wow 4" lift and no track bars or control arms ?
How does the jeep drive ?

As already said, start with a front track bar and get the axle centered. I have a gen 1 in the classifieds if interested. Don't even consider a Highsteer unless needed for bumpsteer. No need to stress over something you may not need.

For flighty/ loose steering. A set of front lower control arms or drop brackets to bump caster up a bit.

Did the kit address the rear axle at all ? You want to look into a raised track bar axle bracket. You can use a bracket alone -unlike the front -because there's no steering involved. This should get the axle close to center, raise roll center some which will better handling.

Lift heights over 3" should not be done cheaply. There's going to be some geometry --like the front steering --that can be fixed. Other geometry --nothing bolt on will fix it.

All of this stuff is outlined In this thread here READ ME READ ME

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Old 02-09-2014, 07:38 AM   #17
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Oh and look into some nice Rancho 9000's or even the pro comp MX6 adjustable shocks when all said and done. The run of mill procomps are known to ride like a tank. Never ran them so I really don't know how true this is. I have ran the 9000's and they are a amazing shock for the money. if timing is right Rancho should be offering their twice a year buy 3 get 4 rebate soon
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Old 02-09-2014, 08:15 AM   #18
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The ProComp lift came with a rear track bar bracket. My problem is ride quality sucks. The jeep drives straight down the road but when I hit a bump it jumps around and sling shots you to the shoulder of the road. Im very disappointed with the lift. Lesson learned... you get what you pay for. I experienced death wobble after my lift. It was due to slack in the trackbar bolt. Now I am scared to do any mods. I have no choice but to center the axle up with a track bar with maybe some lower CA's. Why only get lowers and not uppers?
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Old 02-09-2014, 08:33 AM   #19
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The ProComp lift came with a rear track bar bracket. My problem is ride quality sucks. The jeep drives straight down the road but when I hit a bump it jumps around and sling shots you to the shoulder of the road. Im very disappointed with the lift. Lesson learned... you get what you pay for. I experienced death wobble after my lift. It was due to slack in the trackbar bolt. Now I am scared to do any mods. I have no choice but to center the axle up with a track bar with maybe some lower CA's. Why only get lowers and not uppers?
Either will work but with such a high lift, uppers will have to be turned in-which will pull the axle in some. Lowers are lengthened, have the opposite affect and push the axle out. Not a lot, but it does.
Many go for lowers because of the ease of adjusting/easy to get to,
Do you rock crawl or is clearance a concern of yours ? A set of front CA drop brackets will correct caster and alter geometry for better handling.

The rear bracket. Does it drop or raise the track bar ? I'm just giving you the better ways to do things here

Since you mentioned DW. did you go through PlanMan's DW thread 100% ?
I see you replaced/torqued the track bar bolts but DW reeks havoc on everything. Depending on the severity, I wouldn't doubt bad ball joints and/or Tre's. The mount holes might still be oversized as well.
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Old 02-09-2014, 09:06 AM   #20
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The rear track bar bracket raised the track bar. I watched the video you have linked. By looking at the side of my rig the wheel is still centered under the fender. When looking at the front of the rig that is where my center issue is. By having the stock track bar and four inches of lift it shortens the track bar i guess moving it out of center making the springs sway or lean to the right towards the driver side. I have a feeling that by the time I spend the money purchasing track bars, CA's and replacing my cheap blown out procomp shocks I can possibly downgrade to a 2.5-3 inch lift and not have to upgrade for geometry. I very rarely offroad. I only have 33" tires. I like the look of the lift with extra fender clearance. My concern is now the death trap Im riding in. What do you suggest?
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Old 02-09-2014, 09:33 AM   #21
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The rear track bar bracket raised the track bar. I watched the video you have linked. By looking at the side of my rig the wheel is still centered under the fender. When looking at the front of the rig that is where my center issue is. By having the stock track bar and four inches of lift it shortens the track bar i guess moving it out of center making the springs sway or lean to the right towards the driver side. I have a feeling that by the time I spend the money purchasing track bars, CA's and replacing my cheap blown out procomp shocks I can possibly downgrade to a 2.5-3 inch lift and not have to upgrade for geometry. I very rarely offroad. I only have 33" tires. I like the look of the lift with extra fender clearance. My concern is now the death trap Im riding in. What do you suggest?
I agree, you might be better off with a lower kit with the parts that are needed. Flat flares for the clearance you want. Sell the coils for a couple extra bucks.
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Old 02-09-2014, 09:42 AM   #22
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Greatly appreciate your help kjeeper10
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Old 02-09-2014, 09:50 AM   #23
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I agree, you might be better off with a lower kit with the parts that are needed. Flat flares for the clearance you want. Sell the coils for a couple extra bucks.
Thanks Ken, I was hoping that you would jump into this one and help him out............
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Old 02-09-2014, 09:53 AM   #24
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Greatly appreciate your help kjeeper10
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Thanks Ken, I was hoping that you would jump into this one and help him out............
Thanks fellas

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