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Old 07-13-2013, 12:02 AM   #1
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Sye/pitman arm/trackbar?

Hi! I'm the owner of a 04 tj and I have some questions and need some advice. I know there are probably plenty of threads with these same questions but from everything I've seen I haven't been able to find somebody with quite the same questions as me. So ill get started.

As of right now I have a completely stock jeep, besides a 2" knock off spacer block lift. I ordered a new trackbar from summit (ordered to hopefully fix my death wobble) and will be installing it tomorrow.
I'm looking to lift my jeep more. I want to go 4" so I can throw on some 33"s.
Im considering the Rough country N2 series lift kit.
When I went to Firestone the other day to look at tires, one of the employees/a fellow Jeeper told me that I would need to purchase a new pitman arm and a new trackbar (adjustable or just a relocator, can't remember), as well as a SYE. Pitman arm and track bar isn't a big deal to me. However they said that a SYE along with installation would be about 1k. This is the first I've ever heard of a SYE so I'm just wondering if its absolutely necessary or if its just something ill need if my jeep isn't driving properly.

So basically my question is, is this true? Will I need a new pitman arm and a new trackbar? What about the SYE? I was told by somebody else that all they needed for their 4" was a rear trackbar adapter, however he has skyjacker.

I don't know a whole lot about lift kits, if you can't tell.
I just want to be able to get 4" of lift without a ton of complications and additional purchases. I probably sound like a total newb who doesn't have any idea what they're doing and I pretty much don't, so can anybody lead me down the right path?

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Old 07-13-2013, 12:37 AM   #2
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well the SYE works like this. when your jeep goes up or down do to offroading or even on a large enough obstacle the driveshaft tends to "stretch" since this isn't possible due to it being made of metal the slip yoke allows a section of your driveshaft to slide or SLIP. when you lift your jeep and don't do a tcase drop your driveshaft will pull out some (and be at an awkward angle causing dlvibes) if you do too high of a lift the SY can actually slip off causing your tires to stay stationary since the drive line is no longer connected to the tcase. As mentioned before a tcase drop kit will usually do the trick, however a sye although more expensive is the better route to go about this. Hope that helped you out

now with a 4 inch lift an SYE is the preferred route to go vs a tcdrop. you usually wanna do a tcd with a lift no higher than 3.5 in my opinion as the driveline angle isn't that big. also with a 4 inch lift doing a tcd will require you to do an mml if i remember correctly while a SYE would (im not 100% sure on this last statement) not require an MML, someone can correct me if im wrong

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Old 07-13-2013, 12:56 AM   #3
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The pitman arm is not really needed for a 4" lift, there are very few suspension setups that would need a dropped pitman arm.

Adjustable trackbars are good to have to keep your axles centered.

SYE does not cost 1k. You are looking at about 160 for a non super short SYE and another 300-500 for a CV driveshaft.
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Old 07-13-2013, 01:41 AM   #4
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For this kit
For the front track bar and pitman arm, you essentially want to keep them as close to the same angle as possible so that when the suspension cycles, they stay at the same angle. This way they do not fight each other and cause bump steer (you hit a bump and the wheel jerks to one side). So, a good rule of thumb is that if you drop track bar with a bracket, you use a dropped pitman arm. If you keep the track bar in its original mounting points you do not use a dropped pitman arm.
Also, without relocating the axle mounting point of the trackbar [drill a new hole, (this is generally not advised) or using a relocation bracket] I would recommend an adjustable front trackbar to recenter your axle after lifting it to around 4". This part is optional on their site and in the directions.

You MAY need extended front brake hoses for a 4" lift. It depends on what you get at full suspension drop. Read this thread.

A SYE and new (longer) CV rear drive shaft should take care of your vibrations and not lower your transfer case mount/skid plate like a transfer case lowering kit does. You are looking for more clearance not less under there. There is a lot of information out there on this. Kits, complete with the parts you need are avilable if you can do it yourself. Take a look at these directions. Here is one combination kit that gets you both pieces for around $500. You can also order both parts with your lift for $500. The Tcase lowering kit should work, the SYE and new CV rear drive shaft is the preferred option.

*Of course all lifts vary slightly and you should check your final set up after everything is installed.
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