I have finished installing a 4.5 inch lift on my 1998 jeep cherokee xj and I'm pretty sure I'll need an sye kit and drive shaft but I'm new to this and I've had jeep lifted 3 inches and didn't have to do much beside springs and leaf packs now it's lifted 4.5 I get vibes at different speeds some times I don't know what is needed to be done to get right sye kit and drive shaft could someone tell me what is needed to be done to get the right length and what's a good sye kit.

 

http://www.seriousoffroadproducts.co...it-87-06-XJ-TJ

http://www.seriousoffroadproducts.co...5in-RE1860-325

 

I just went from 3-4 1/2" and the SYE was needed plus I used 6* shims also. Check Amazon.com and see what you can find I caught one on special for $99 reg $150 most places. Then found a drive shaft for $190 there also from a driveline shop.