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Old 11-18-2010, 08:55 AM   #1
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SYE setup, what do I need?

I'm planning on installing a Sye kit and CV shaft in the near future. I want to get a tummy tuck kit eventually as well. I'm going to get a super short kit (not sure what make) and a Tom Woods CV shaft. From what I have read I need to replace my rear upper control arms with adjustable ones in order to dial my pinion angle in. Is that a must? If so what control arms do you recommend. I currently have 3.25" of lift and I don't plan on going any more the 4" in the future. The main reason I want this setup is to be able to install the tummy tuck kit in the future and gain some ground clearance.

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Old 11-18-2010, 09:01 AM   #2
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First, unless you have an EXTREMELY tall lift, you don't need a super-short SYE. 4-5" of lift does not need one at all, not in the least. The downside to a super-short SYE is that it replaces the speedometer gear assembly with an electronic version. That means you have lost the easy/fast speedometer calibration ability of swapping in a new speedometer gear to compensate for tire size or ratio changes. A super-short SYE instead requires you buy an aftermarket electronic speedometer calibrator like a Truespeed.

There is no real benefit to a super-short for standard size lifts, there is only that drawback I described. Though admittedly if the extra bother and expense of adding an aftermarket electronic speedometer calibrator is no big deal to you, then the super-short SYE would be an ok way to go.

And yes, you will need upper-rear adjustable length control arms to properly set the pinion angle for the CV driveshaft.

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Old 11-18-2010, 09:25 AM   #3
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Thanks Jerry, The reason I was thinking about the short kit was because I want the do a tummy tuck kit in the future and was told that it will raise the Tcase/tranny about 3" from the stock location. Along with a 4" lift that would simulate 7" of lift correct? Or is a standard SYE kit fine for that much lift?

Thanks in advance,
Bob
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Old 11-18-2010, 10:06 AM   #4
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I had a lapse about the fact you said you would eventually be going with a tummytuck, that's a good reason to go for the super short SYE. A good source for the SYE, super-short included, as well as the CV driveshaft would be Tom Wood. He's at Tom Wood's Custom Drive Shafts - Tom Woods Custom Drive Shafts Custom Driveshafts Specialist

Ask for Tom if he doesn't answer the phone, he's really a good guy to talk with about this. And I owe him a few favors so please mention that I recommended him if you think about it.
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Old 11-18-2010, 10:31 AM   #5
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I HIGHLY recommend the super short SYE. I know because I don't have one. I have the regular HD SYE, and with only 2.5" springs and tummy tuck I fight driveline issues frequently (and I have an MML). The tummy tuck doesn't just simulate adding lift. It rotates the whole drivetrain up, which increases the operating angle of the CV joint in the driveshaft. You'll want every extra inch of driveshaft lenth you can possibly get. I tried for a year to get my flat belly skid to work before I finally had to give up and lower it 1.5" because the driveshaft couldn't take it. With a Super Short kit, I may be able to pull it off.
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Old 11-18-2010, 10:31 AM   #6
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Quote:
Originally Posted by Jerry Bransford View Post
I had a lapse about the fact you said you would eventually be going with a tummytuck, that's a good reason to go for the super short SYE. A good source for the SYE, super-short included, as well as the CV driveshaft would be Tom Wood. He's at Tom Wood's Custom Drive Shafts - Tom Woods Custom Drive Shafts Custom Driveshafts Specialist

Ask for Tom if he doesn't answer the phone, he's really a good guy to talk with about this. And I owe him a few favors so please mention that I recommended him if you think about it.

^^ This ^^ Tom is the man.

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