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Unread 07-07-2010, 07:38 PM   #1
phillies4752
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SYE Question

Hey, I have came across a SYE rough country kit thats going for $125 and was wondering.... Do I have to have both a SYE and a CV drive shaft all at once? Or can I wait a bit to get the CV drive shaft.

Right now I have a 2inch BB with a 1.25inch BL and a 1inch MML. I eventually want to work my way up to a 4inch suspension lift. Just wondering if I can do it in stages.... im still in college and money is tight

Thanks for your help

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Unread 07-07-2010, 07:47 PM   #2
dcope17
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Something has to adjust the driveshaft length to compensate for suspension moving up and down. If you remove your slip yoke... you need a driveshaft that will expand and contract. ( I'm sure there is a specific name for it but I don't know what it is )
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Unread 07-07-2010, 07:55 PM   #3
phillies4752
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so im guessing i can't do anything until I have a CV driveshaft? Or do I have to have all three... SYE, CV, and lift kit?
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Unread 07-07-2010, 08:06 PM   #4
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Quote:
Originally Posted by OlllllllllO View Post
Do I have to have both a SYE and a CV drive shaft all at once? Or can I wait a bit to get the CV drive shaft.
well considering the driveshaft you have now uses a slip yoke, and the SYE is called a Slip Yoke Eliminator, no.

you don't need to buy the CV shaft at the same time as the SYE, you just can't use a rear driveshaft. you'll have to drive around in front wheel drive (4x4)...which won't hurt anything.
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Unread 07-07-2010, 08:11 PM   #5
phillies4752
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I just can't go over 55 right? haha, im thinking about holding off till I have the CV driveshaft. Would the SYE and CV driveshaft work with my 2 inch BB and 1.25 BL for a bit until I get a lift kit?
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Unread 07-07-2010, 08:13 PM   #6
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As was said, you could just leave the rear DS off. But ideally you do the SYE, new DS and the lift at the same time. The new DS is typically longer to compensate for the lift, so you at least have to do the lift and DS at the same time if you use the front wheel drive option.
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Unread 07-07-2010, 08:21 PM   #7
phillies4752
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alright, thank you for your help! that clears up a lot of stuff. I guess there will be a lot of parts sitting in my shop for some time haha but ill get there someday! thanks JP!
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Unread 07-08-2010, 08:23 AM   #8
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Quote:
Originally Posted by OlllllllllO View Post
so im guessing i can't do anything until I have a CV driveshaft? Or do I have to have all three... SYE, CV, and lift kit?
you also need adjustable upper control arms in the rear to reset your pinion angle
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Unread 07-08-2010, 08:46 AM   #9
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Quote:
Originally Posted by mrbates View Post
you also need adjustable upper control arms in the rear to reset your pinion angle
x2

CV driveshaft and SYE will do nothing for you if it's not setup correctly (pinion angle same as the driveshaft angle)
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Unread 07-08-2010, 08:53 AM   #10
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don't forget you can pull the front CV shaft from any junkyard XJ or TJ and have a local driveline shop modify it to fit...typically less than $100.
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