bamorgan7

how do i know when i need a sye cause im lookin at a 3 inch lift

1987XJ

Anything over a 3 inch lift, but you can do it with the 3 inch lift

TennesseeXJ

I ran 4.5" on 33's with a T-Case drop and had no issues. As soon as I stepped up to 35's though I got some nasty vibes on the freeway. With 3"s though youll be fine

XJ?2010

The cheap way is to do a T- case drop but some say is just a "band-aid" till you get an SYE i plan on running one with my lift you could also look into shims as well

01LimitedXJ

when going from 20 to 30 mph feels like a plane taking off...thats usually a good indicator. every jeep is different, but most say you should have one over 3.5 inches. I just put on the 3.5 inch RE lift...and the vibes are BAD

98 JeepJeep

that kit doesnt come with a adjustable track bar correct?

UNCC_99XJ

The real answer is, you won't know till you lift it and see what it does. No two Jeeps react the same to a lift. I've seen some vibe at 3" (mine), some at 2" (my friends with a BB), and other go 5-6" and be just as smooth as can be.

Best method is to go ahead and budget for one, but lift it and drive it. If you have vibes, start with a 1" transfer case drop and see if that helps. At 3", in most cases you can get by with that set up. In general, anything 3.5" and more a SYE is a must. I ran 3" w/ a 1" tcase drop and still minor vibes for a year before I started running into issues. When I went to 3.5" I went with an SYE and haven't looked back.

01LimitedXJ

Nope, you redrill the trackbar mount over...i think its like 3/4 of an inch. Tells you want to do in the directions. Not the best solution, but will work for me for the time being. I plan on going bigger in a few months, so im waiting til i get all the pieces. I have my Porc Sye coming in the mail.

98 JeepJeep

do you have a link to SYE?

double_ot_xj

good thread bc i was wondering the same thing myself. i plan on the 4.5" from rough country and that kit has a 1" tc drop. and i do plan on the qd sways and the adjustable trackbar. i only plan on 31's at the moment but in the futire i will go larger like 32, 33". is it a good idea to just spend the money now or wait to see how she reacts?

UNCC_99XJ

Go ahead and budget for it, have the money ready....but definitely lift it and see what happens.

At 4.5", i'm about 90% sure you'll need a SYE....but like I said earlier, no two Jeeps react the same so you may luck out.

Mudderoy

RC 4.5" on my 98 for 13 months. 1" TC drop. Smooth as silk. I WILL be doing the SYE on my NP242 though. As happens with most people I'm ready to go higher, plus I don't like the TC hanging down. I mean it's lifted for more clearance right?

Many people recommend doing the SYE first. It's not a bad idea.

Ultimately I'll have a 6.5" lift and 33's maybe 35's. When I re-geared I think I went far enough to cover the 35's (4:56).

UNCC_99XJ

True, as ultimately a SYE is really the better way to go (and looking back, I think even if my XJ was stock I still would have done it....I like the set up much better now).

Good to see you over here too!

TennesseeXJ

$169 with a lifetime warranty. Also you can save even more money and use a front shaft from a junkyard. Then youll have interchangeable driveshafts

http://www.performanceoffroadcenter....roducts_id=153

Mudderoy

Thanks!

I should have done the SYE when I replaced the drive chain, but oh well. I'll go with Tom Woods when I do it. Sounds like his is the best choice for the NP242 at least. I agree the stock set up is just goofy. Save $50 in the manu process I guess.