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Unread 10-17-2007, 09:40 PM   #1
Stout95YJ
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SYE question

Just installed 4" RE lift, buying an SYE soon, will just an SYE kit get rid of these noises and vibes? and Do I have to run a CV shaft with an SYE kit?

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Unread 10-17-2007, 09:45 PM   #2
enil01
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You need the CV shaft too.
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Unread 10-17-2007, 09:55 PM   #3
Big-n-Broke-YJ
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you don't need a cv shaft with a sye. i ran one for 3+ years with no problems what-so-ever. i think it was a CJ shaft that was tweaked for lenth if i remember right...

just be sure if you have a cv yoke you run a cv shaft or you will limit the ujoint's ability to run at a steeper angle.

-Erik <--- "accidentally" ran a u joint in the cv yoke for 3+ years with minimal problems, whoops
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Unread 10-17-2007, 09:57 PM   #4
Jeffro06
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Quote:
Originally Posted by enil01
You need the CV shaft too.
And you'll have to replace those 4 degree shims....I've got 8 degree shims coming tomorrow! Then, hopefully, I'll lose the transfercase drop, and the last of that vibration! Just takes getting the pinion to point at the transfercase, or so I'm told.

I didn't have any vibes with the 4" lift, and the transfer case drop, but the driveshaft angle just scared me.
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Unread 10-17-2007, 10:10 PM   #5
crb577
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yeah I use a cut down XJ shaft works perfect and is pretty cheap
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Unread 10-18-2007, 02:04 AM   #6
enil01
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Quote:
Originally Posted by Big-n-Broke-YJ
you don't need a cv shaft with a sye. i ran one for 3+ years with no problems what-so-ever. i think it was a CJ shaft that was tweaked for lenth if i remember right...

just be sure if you have a cv yoke you run a cv shaft or you will limit the ujoint's ability to run at a steeper angle.

-Erik <--- "accidentally" ran a u joint in the cv yoke for 3+ years with minimal problems, whoops
Dag why didn't I think of that simple solution. I stand corrected.
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[CENTER]_|_
--X-X-(_)-X-X--
<->
<3 EP-3Es[/CENTER]
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Unread 10-18-2007, 07:02 AM   #7
chupacabrah
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Quote:
Originally Posted by crb577
yeah I use a cut down XJ shaft works perfect and is pretty cheap
same here.

AA SYE - $200 shipped
CV shaft (99 xj out of junkyard) - $50
local shop cut and balance CV shaft - $58
replace ujoints in d-shaft (3 x $15ea) $45


if you get sye and cv shaft, remember also that your rear pinion has to be pointing towards your tcase. tom woods' site has some pictures and stuff describing the driveshaft geometry
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Unread 10-18-2007, 08:53 PM   #8
Stout95YJ
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So I can get a CV shaft out of an XJ ? any specific years?
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Unread 10-18-2007, 09:43 PM   #9
sentinal02
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a CV style shaft isn't 100% necessary but some type of new shaft is. the stock shaft a) isn't long enough and b) won't be able to expand and contract anymore with a fixed yoke output on the t-case. since you're going to need a new shaft anyway most people opt to run a CV style to be sure there aren't any vibes.

as for years for the XJ, pretty much any 90's model will work IIRC. mine came from a 97 with an auto.
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Unread 10-19-2007, 07:16 AM   #10
chupacabrah
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Quote:
Originally Posted by stout 1995 Yj
So I can get a CV shaft out of an XJ ? any specific years?

newer the better, i think. 97-99 is pretty safe.

it's the front driveshaft, btw, if you didnt realize.
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