SYE absolutley necessary? - JeepForum.com

 
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post #1 of 10 Old 06-16-2011, 12:04 PM Thread Starter
rhinocarlos
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SYE absolutley necessary?

I lifted my jeep 3.5 lift with coil springs & 1.5 spacers in the front.
In the back I have a 2" add a leaf more like 1.5 tho, and 2" shekels.

I've been researching an SYE to eliminate the vibrations when the car is cruising and my foot is not on the gas pedal.
I just don't know how to install an SYE or all the parts that I need to buy.

here's some pics of before and after of the Jeep.




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post #2 of 10 Old 06-16-2011, 12:13 PM
CJ7-Tim
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Nice looking Cherokee

Everything you need to know is here on the Forum, you just have to search for it a little bit.

Start with this info - http://www.jeepforum.com/forum/f11/t...ks-tsbs-89273/

Drive line vibrations will eventually destroy your Transfer Case or rear axle. Sometimes with a most spectacular self-disassembly.

.

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post #3 of 10 Old 06-16-2011, 12:33 PM
COLOUXJ
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Quote:
Originally Posted by CJ7-Tim View Post
Drive line vibrations will eventually destroy your Transfer Case or rear axle. Sometimes with a most spectacular self-disassembly.
Yup, saw a XJ with about 4.5 the other day with just a t-case drop, the rear driveshaft U-joints snapped at the tcase, That had to have been scary for him
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post #4 of 10 Old 06-16-2011, 05:07 PM Thread Starter
rhinocarlos
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yeah, I'm definitely getting one, I've decided to do a hack and tap kit with a new drive shaft. I'm not wheeling to hard, and I'm moving a lot closer to school and work, so it should be just fine.
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post #5 of 10 Old 06-16-2011, 05:12 PM
1990JEEPXJ
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nothing wrong with a hack n tap. many people use them without a problem.

Completely stock, and keeping it that way...

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Yea, and I thought it was one of the 11 Commandments:
11) Thou shalt love, cherish, and honor till death, thine square headlights above all other earthy things sayith the Lord.
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post #6 of 10 Old 06-16-2011, 05:22 PM Thread Starter
rhinocarlos
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hopefully, but this sure does get expensive and addicting!!
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post #7 of 10 Old 06-17-2011, 12:15 AM
1990JEEPXJ
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and the hack n tap is cheaper for you 96+ folks. that with a JY front shaft and you have an SYE for pretty cheap.

Completely stock, and keeping it that way...

My POS
Quote:
Originally Posted by Joe Dillard View Post
Yea, and I thought it was one of the 11 Commandments:
11) Thou shalt love, cherish, and honor till death, thine square headlights above all other earthy things sayith the Lord.
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post #8 of 10 Old 06-17-2011, 04:15 AM
ratmonkey
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You need to shim your axle. an sye would require you to shim it as well.

You don't need a sye sa 3", you do need to shim your axle to get the right pinion angle back.

'97 zj 5.2, some stuff, some other suff, and some things that even work sometimes.

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post #9 of 10 Old 06-17-2011, 09:02 AM Thread Starter
rhinocarlos
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Quote:
Originally Posted by ratmonkey View Post
You need to shim your axle. an sye would require you to shim it as well.

You don't need a sye sa 3", you do need to shim your axle to get the right pinion angle back.
I'm fairly new to my jeep, and have no idea how to shim my axle, Is there a write up on the forum? on how to do it?

Do i need leaf shims? or pinion shims?

Last edited by rhinocarlos; 06-17-2011 at 09:16 AM.
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post #10 of 10 Old 06-17-2011, 01:26 PM
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Leaf shims, I bought mine from Rusty's. They are fairly cheap, you just have to put the new pin in the leafs and slip the shims between the axle and springs! I did the hak and tap and it was fairly easy. I would buy the kit with the driveshaft. I think IRO sells it for around 200, that would have been cheaper than piecing it together like I did.

98 XJ, Pearl Green, 4.5" lift, 32's Daily Driven. BEAT IT! BREAK IT! FIX IT!
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