Do I need a SYE -

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post #1 of 2 Old 10-25-2001, 03:25 PM Thread Starter
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1994 YJ Wrangler 
Join Date: Jun 2001
Location: T Town, Ohio
Posts: 286
Do I need a SYE

I have a 3" RC lift and 2" shackles. Someone hear said that if you go over 4" you need sye. I also read that 2" shackles only give you 1" of lift. I have a vibration that starts at 45mph only when accelerating. Feels like its coming from the rear. Any Ideas?

94 YJ 4.0 HO 3sp Auto, 3" RC Lift, 1" Shackles, 3" BL, 31x10.50, Pacesetter Armor-Coated Header, Homemade Air Intake w/ K&N
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post #2 of 2 Old 10-25-2001, 03:45 PM
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Location: somewhere in, Tx.
Posts: 275
You really shouldn't need an SYE. However, you may need a little steeper degree shim added to your rear axle. The vibes your feeling could be the u-joint caps going out.

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