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New Jeep owner looking for advice on transfer case drop kit

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Old Mar 22, 2013 | 12:00 AM
  #1  
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From: Las Vegas NV.
Year: 1995
Model: Cherokee
Engine: 4.0 I6 High Output
Default New Jeep owner looking for advice on transfer case drop kit

So I just bought a Jeep 95 Cherokee sport and first things i noticed on the Jeep was bad vibrations coming from transfer case area. Got under the truck and found low fluid in transfer case and a bit of a rub connection ( clanking or clinging noise ) on the u-joint of the rear drive shaft. And the Cat convt. making noise inside the housing, led me to think that the cat. convt. is falling apart inside.
So I Drained what was left and filled up the transfer case with new DEXIII and half bottle of lucas tranny lube. <-- hope the lucas was good idea.
Most of vibrations went away, but the problem Im having is the drive shaft still rubbing a bit and making that horrible clinging/clanking noise around the u-joint coming from the rear drive shaft. ( all connections and Joints look good maybe even rebuilt)
So little research guided me towards a transfer case drop kit since i already have SYE installed. Thinking about doing the 1.5" drop since i have such a big suspension lift.
Well Hello from vegas, and Im def. looking forward to being apart of the Jeep community. So any advice on the transfer case drop kit, should I do the 1.5" or just 1" Drop.? Or whats up with the drive shaft rubbing like that?
Thanks for any advice in advance.
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Old Mar 22, 2013 | 12:07 AM
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From: Lynden, WA
Year: 1998
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You do not need or want a t case drop kit when running an SYE. Your issue is most likely your pinion angle. Your rear axle should be tilted upward so the pinion points strait at the center of the cv joint that is bolted to the yoke on the rear output of the t case.
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Old Mar 22, 2013 | 01:56 AM
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From: shawnee,ks
Year: 1993
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Like he said sye or drop not both. Check pinion angle and if that's good take a grinder and do some yoke clearancing. How much lift do you have

Last edited by wiggles; Mar 22, 2013 at 02:13 AM.
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Old Mar 22, 2013 | 06:58 AM
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How much lift?
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Old Mar 22, 2013 | 02:04 PM
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From: Las Vegas NV.
Year: 1995
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Jeep has 4.5" short arm lift
What are the advantages and/or problems with the transfer case drop kit?
And how can i check the pinion angle?
Would grinding down the yoke cause premature wear, maybe even break the ujoint connections faster then normal?
Thnx again for any advice, i wil try and take photos of the axle and post them.
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Old Mar 22, 2013 | 02:09 PM
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Disadvantage is obvious, you're lowering part of the vehicle so it's closer to the ground...less ground clearance.

Got any pics of the t-case/driveshaft? One showing the t-case, driveshaft and axle would help.
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Old Mar 22, 2013 | 03:00 PM
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From: Las Vegas NV.
Year: 1995
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Not to worried about losing clearance. Just want to know if adding the tc drop would fix the problem, or would the tc drop put to much strain on the tranny and motor makin the degree change effect motor mounts wearing out faster or even the motor hitting the coolant fan or even push into the radiator.???
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Old Mar 22, 2013 | 09:14 PM
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From: Las Vegas NV.
Year: 1995
Model: Cherokee
Engine: 4.0 I6 High Output
Default Here is photos of the rear drive shaft & SYE kit

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[IMG][/IMG]

[IMG][/IMG]
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Old Mar 22, 2013 | 09:16 PM
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[IMG][/IMG]
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Old Mar 22, 2013 | 09:22 PM
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You've already got an SYE so there's no need to drop/lower the t-case.

You're pinion angle is way too shallow.
When running an SYE it must be pointing directly at the t-case output.

You've got 2 options:
1.) Add the appropriate degree shims.
2.) Cut off the spring perches and re-weld to get the proper angle.
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Old Mar 22, 2013 | 09:47 PM
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From: Las Vegas NV.
Year: 1995
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Originally Posted by SeriousOffroad
You've already got an SYE so there's no need to drop/lower the t-case.

You're pinion angle is way too shallow.
When running an SYE it must be pointing directly at the t-case output.

You've got 2 options:
1.) Add the appropriate degree shims.
2.) Cut off the spring perches and re-weld to get the proper angle.
Thinking about going to Adams drive line shop close by me.
They can add shims?? and what would be the cost roughly??

thanks for the advice.
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Old Mar 22, 2013 | 10:35 PM
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From: Ashland Nebraska
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i have 4.5" lift ,sye and 4* shims and its perfect , so 4*shims should work
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Old Mar 22, 2013 | 10:39 PM
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Originally Posted by 1SIC4X4
Thinking about going to Adams drive line shop close by me.
They can add shims?? and what would be the cost roughly??

thanks for the advice.
It's a simple DIY job.
http://www.seriousoffroadproducts.co...2C+DEGREE+SHIM

And a set of replacement pins...

http://www.seriousoffroadproducts.co...NT+CENTER+PINS
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Old Mar 22, 2013 | 10:48 PM
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Originally Posted by SeriousOffroad
Thanks for the pointers.
But i do not know what degree shim i would need, or how to install it?
All this truck stuff is new to me.
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Old Mar 22, 2013 | 10:52 PM
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I'm about to call it a night.

I'll reply in the A.M. with more info.
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