cherokee1993

i have a 2000 cherokee sport...just put rough country l4.5 lift on it and then got it aligned... but it has small shaking/clunking gets very loud around 55mph......any ideas?

Pigeon

Have you installed an SYE?

cherokee1993

no....few people said i should be fine without it but idk.......the rear also has a whining noise when i let off gas(had this before i lifted it) could it just be the bearing getting worse or no?

alloutperform

well you need pinion bearings thats the whine... i have had u joints get angry just changing the angle of them.try changing them.. you shouldn't need an sye but i did a rough country 4.5 past spring for a customer of mine that was a lot taller then my 4.5 so you may need one

cherokee1993

could it be trans or motor mounts also? trying to go every route before SYE kit cause expensive and i have a NP242J and i cant find one for that t-case

dogger15

Because you have to do hnt for the 242

beepjeep575

get urself 1" square tubing cut two pieces the width of your tc crosmember support tc remove bolts on oneside slide in squaretubing (after u have drilled the two holes in each ) replace bolts and repeat the other side that should be a farely good fix on the tc sye but the whine i would agree to change u joints bearings n seals new fluid done n done, hope that helped

stowe

The newer xj's tend to get driveline vibes with lower lifts than the older ones. My "3 inch" lift on my 2000 caused vibes (It actually sits around 4" in the back). I put a t-case drop kit on mine that solved the problem. I am going to do a sye, but I have a few more pressing things to take care of before I do it. I would say that is likely the cause of your problems. If you have the cash to do it, put on a sye. If you are a bit strapped right now check quadratec or someone and grab a t-case drop. It's not the "correct" way to fix the problem but, it will get rid off your vibes and you can add the sye when funds allow.

cherokee1993

whats hnt ?

helmut

hack n tap. Just a style of SYE. you cut the output shaft and tap into it. Then You use a front driveshaft and thats your SYE.

DaddyGreenGenes

Tom Woods is the only company that makes a legit SYE (new tailshaft) for the 242. That's where I got mine from... Great quality, but a tad expensive. Then again, doing things the right way usually is expensive. But you get what you pay for...