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Old 09-22-2011, 03:26 PM   #1
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Drive shaft for Rubicon with 4" lift

I am putting on my RC 4" lift in the next week or so (or so I hope) and I am wondering if I need to exchange the drive shaft right away or can I wait a few weeks/month. I read that because I have a Rubicon I dont need a SYE but I do need a new drive shaft, again can I wait or should I do this straight away? Oh and it will be a Tom Woods drive shaft as well.

I picked up my 33x12.5/15 tires and wheels yesterday off craiglist 95% thread on Cepeks.. $1100, not to bad.
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Old 09-22-2011, 08:53 PM   #2
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Yea you'll need a CV drivesahft and best if you do it all at the same time, otherwise you might have to do a tcase drop and not sure the the DS will be long enough for any travel during offroad.

Actually yea the DS wont be long enough... just looked thru my pics when I did my lift

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Old 09-22-2011, 08:55 PM   #3
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I believe you will need a new shaft right away. I don't think the existing shaft will be long enough but just guessing. Front should not be an issue.

Paul
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Old 09-22-2011, 08:58 PM   #4
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I'm not exactly the most knowledgeable, but I thought there was no need to replace the DS on a rubi. I could certainly be wrong, but I could swear I've read/heard that somewhere. OP might very well be right, it might be no SYE needed but a driveshaft is.
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Old 09-22-2011, 09:02 PM   #5
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Nope DS needs replacing, it's too short... there's NO need for SYE since it's basically built in the Tcase of the Rubi, so you just need a CV DS and adjustable controls to get you pinion angle just right
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Old 09-22-2011, 09:32 PM   #6
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SYE stands for Slip Yoke Eliminator. As the name implies, its a kit that eliminates a slip yoke on a transfer case by converting the output shaft to a fixed output shaft instead of the splined slip yoke output.

the Rubicon NV241OR has a fixed flange output...there was never a slip yoke to eliminate.

You will still need a Double Cardan (also called a CV) driveshaft. The DC shaft will require adjustable upper control arms at a bare minimum, and lower control arms are recommended. You'll need to center the axle housing at full bump and set the pinion angle at ride height by shortening the lowers and extending the uppers.

Give this a read:
What is a CV shaft and why do I want one? - JeepForum.com

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