cherokee monster

if i lift my suspension by 3" do i have to extend my brake hoses, shocks and prop shaft

ZachsXJ

That doesn't necessarily mean they're in good condition inside. U-joints are one of the most neglected parts on vehicles that really should be serviced on a regular basis. I still say that your u-joints are the problem

How do you figure that? I just looked at ALL of the 3" lit kit options on Rusty's website, non of them include shackles, which are the only thing that would cause a change in the pinion angle.

A transfercase drop will only end up causing more problems in the long run because then the pinion angle isn't in line with the transfer-case output. I'm gonna stick to my guns and say that the problem is his u-joints until I hear something that makes me think differently. Everything he's described so far screams bad u-joints.

Do a 3" kit with lower control arms and full leaf packs, especially if its mainly going to be for the street.

Brake lines, and driveshafts? No. You don't HAVE to extend your shocks either, but its still a good idea.

N20jeep

sure, there is always a possibility that its his u-joints.

but a lift puts the driveshaft itself at a steeper angle, which can cause driveline vibes easily on a slip joint driveshaft if the angle is to extreme. u-joints are only made to run at certain angles.

but really it mostly depends on driveshaft length, which will vary from XJ to Xj depending on running gear. example: an ax15/231 equipted xj with a dana 35 will have a longer driveshaft and will be less prone to driveline vibes than a aw4/231 jeep with a 8.25, which will have a shorter driveshaft and therefore a steeper ujoint angle.

and a TC drop can correct this. but an SYE setup with a double-cardon is preffered.

ZachsXJ

I know all about SYEs, I happen to have one sitting in my living room waiting to go in the Jeep. I also understand that lifting an XJ changes the DRIVESHAFT angle, but not the pinion angle.

On 3" of lift, regardless of the drivetrain set-up if the u-joints are in good working order there's no reason that you would have excessive driveline vibrations like he's describing. I have multiple friends who have had Cherokees with the less-than ideal setup(Aw4/231/8.25) with in excess of 4.5" of lift and the newer style NP231, they didn't have any driveshaft vibrations or problems of that nature.

U-joints are designed to operated within certain angular limitations, with 3" of lift on an XJ you are not nearing or exceeding those limitations. Assuming the pinion and transfercase angles are correct along with u-joints in good working order he should have very little or no driveshaft vibration.

Jeepability

are the good year all terrain for wal mart any good i bought my xj with them on?

Gatchmo5710

you should know if you have them?? how do they feel? wear?? grip??

Jeepability

one of my friends said he had the same ones and they started to fall apart. there only 2 ply

96XJGUY

Hey, I just wanted to let everyone know that I figured out what the problem was. It was not ujoints, or driveshafts or anything like that. I think I should recieve the retard of the day award for this one.

We spent most of the night putting the lift on my XJ. started around 10pm got done around 5:30am on Dec 23rd. Took it for a drive and heard a loud clanking sound that got worse with speed, so I took it back to the shop and crashed on the couch. The next day I went out to tinker with it I found that the driver side rear whel was not tight. I was really embarrassed when I realized that we had over looked that one wheel. Shame on me. She drives just fine now.

One more question, I still want to put an SYE and DS on it eventually. Who or where is the best place to buy from? I have dealt with Tom Woods in the past and they seemed ok. Prices were a little high on the SYE IMO.

Gatchmo5710

brake lines should be ok. you can just move them down from where they are on frame.

shocks yes!

shaft no

Gatchmo5710

Rubicon express has a hack in tap for decent price. then go pull shaft from junk yard

Borego

stock 92 xj laredo
thinking about putting a 2 inch lift on it, im just trying to make make sure the
31-1050R15 gdy dura trac tires are going to fit.
should i change the shocks or no?
will they fit? I currently have 23575R15LT gdy wrl siltamor tires and to be honest they do sometimes rub, thats only when I hit a deep hole too fast.

Gatchmo5710

they will rub, but not much. i would get shocks but i dont think you have too.

ZachsXJ

haha, been there done that. Its not fun and can drive you crazy trying to figure it out.

For a SYE kit, I'd go with advanced adapters. You can either do a stock front driveshaft or order a custom build unit from Tom Woods. Either or works just fine.

Borego

they rub on what?
the fender or the suspension?
I can always just cut the fenders so i dont care about that.

GreenJay

I have 31's on a 3" lift and I rub on LCA's a little on tight corners. I think you would have the same on 2" unless you think about swapping out wheels for more backspacing.