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Old 01-23-2014, 02:17 PM
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Best Budget SYE Kit

My YJ came with a 3 inch suspension lift, 1 inch transfer case drop and had almost no vibrations. After the shackle lift I did last night the vibrations are pretty bad.

Whats the best SYE kit out there if your on somewhat of a budget? The ones I found were close to $500.

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Old 01-23-2014, 03:14 PM   #2
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Advance Adapters has their np231 SYE kit for $200. You'll need a new driveshaft which will run you a few hundred dollars. I've heard some people say that they have lengthened their stock driveshaft, which would be cheaper.

Here's the link to the AA SYE
http://www.advanceadapters.com/produ...7906--50-7907/

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Old 01-23-2014, 05:30 PM   #3
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Don't cheap out on it. I'd get the Advanced Adapters SYE with a Tom Woods or Tatton's shaft. I went with the Tattons and I'm very impressed. You'd be looking at about $460 for both the AA SYE and a tattons shaft, a little more for a tom woods.
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Old 01-23-2014, 06:20 PM   #4
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What was the length of the shackles that you put on it?

You can install a SYE...a cheap one is rugged ridge...only like 160, but you will have another couple hundred in a good driveshaft.

what you probably need are some bigger degree shims. The are a wedge shaped piece of steel that fits between the axle and the leaf spring. It will tilt your rear end up more toward the t-case, and they cost about 20 bucks.
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Old 01-23-2014, 08:12 PM
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1 inch lift shackles

And shims like these? I'm going I measure my driveline angle
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Old 01-23-2014, 08:25 PM   #6
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I'm definitely no expert. But to me it looks like you're definitely going to need a SYE. That looks like it's too much of an angle for shims to help.
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Old 01-23-2014, 09:13 PM
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Well I couldn't get a good measurement but as of right now my u joints are fine. My teacher said a cheap fix could be a cv joint would that work? Wouldnt I still have problems with pulling out my driveline from a lot of flex?
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Old 01-23-2014, 09:46 PM   #8
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That is the point of the SYE. It allows you to use a cv joint. I don't know if you could do a Cv with a slip yoke, but I am leaning towards no.
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Old 01-24-2014, 01:56 PM   #9
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Your vibrations are being caused by the pinion pointing too far UP. If you decide to use shims you need about 3-4* down. With a standard (non-cv) shaft like you have, the pinion angle must be parallel to the tcase output angle. See how your pinion is pointed directly at the Tcase output? That would be ideal for a CV-style driveline, but in your situation is actually causing the problem.
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Old 01-24-2014, 05:08 PM   #10
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Go the SYE and CV driveshaft then you can get rid of the stupid TC drop. As was said go AA SYE and I'd go Woods driveshaft if possible or Tatton's if you can't swing the Woods.
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Old 01-24-2014, 05:26 PM
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So if I order the SYE kit I need to measure my jeep and tell the company what driveline length I need... What if I decide to go higher with my lift in the future? Would I have to waste money on a second driveline?
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Old 01-24-2014, 07:07 PM   #12
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Quote:
Originally Posted by Gutless 93 View Post
So if I order the SYE kit I need to measure my jeep and tell the company what driveline length I need... What if I decide to go higher with my lift in the future? Would I have to waste money on a second driveline?
Yup. Or have it retubed and lengthened at a shop. Or go taller now, and buy the driveshaft once. There's a few options, but none are really cheap.

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