TJ Lift Questions

99ncxj

99ncxj

Well-Known Member
Joined
Sep 23, 2006
Location
Aliso Viejo, CA
I'm going to be putting a lift on a friends TJ and just have a few questions for all you wrangler guys out there.

At what height do you need a drop pitman arm?
At what height do you need a SYE or transfer case drop?
 
99ncxj said:
I'm going to be putting a lift on a friends TJ and just have a few questions for all you wrangler guys out there.
Click to expand...

IMHO should you be putting this lift on if you don't know why these things are the way they are suppose to be.

there are lots of qualified shops to do these modifications. How are you going to feel if a part you installed isn't installed properly and it fails and your friend or their friends die because of something you did?

99ncxj said:
At what height do you need a drop pitman arm?
Click to expand...
to help keep the steering linkage parallel with the track bar.
99ncxj said:
At what height do you need a SYE or transfer case drop?
Click to expand...
on a TJ jeep pretty much any lift that raises the t-case elevation more than 2". in other words a 2" suspension lift will cause driveline vibrations, but they won't be as bad as a 4" lift with out a 2" t-case drop.


sorry if I come accross as an asshat, but that is my honest opinion! take it to a shop!:driver:



here try this:

http://www.jeepsunlimited.com/forums/showthread.php?t=744476

no try this:
http://www.jeepsunlimited.com/forums/showthread.php?t=883112
 
badog said:
IMHO should you be putting this lift on if you don't know why these things are the way they are suppose to be.
there are lots of qualified shops to do these modifications. How are you going to feel if a part you installed isn't installed properly and it fails and your friend or their friends die because of something you did?
to help keep the steering linkage parallel with the track bar.
on a TJ jeep pretty much any lift that raises the t-case elevation more than 2". in other words a 2" suspension lift will cause driveline vibrations, but they won't be as bad as a 4" lift with out a 2" t-case drop.
sorry if I come accross as an asshat, but that is my honest opinion! take it to a shop!:driver:

here try this:
http://www.jeepsunlimited.com/forums/showthread.php?t=744476
Click to expand...


Wow.
So what your saying is no one should ever ask questions or try and learn anything about their rig? Oh yea, and after your rant, you send him off to a thread about XJ's? He was asking about a TJ.


As for the OP's questions.
Drop pittman arm, you should only need it if you are going with a track bar relocating bracket in the front.
The tcase drop or SYE is a little different. Some people's Tj's seem to work with 3" susp lifts, and no vibes. Others can't even do a 2" spacer lift without vibes.
 
hscrugby said:
Wow.
So what your saying is no one should ever ask questions or try and learn anything about their rig?
Click to expand...
nope would you want some working on your rig that had to ask these questions? he should learn every thing about his rig! I'm saying it's better to be safe than sorry. I just seen a dude that had the frame side bolt come out on his lower control arm and he was getting ready to hit the highway with his family in his xj. he said, "thanks it was steering kinda funny."
I know another fella who's trackbar bolt came out while he (I) was going up 85. He(I) almost pissed his pants. he(I) didn't use loctight or a locking nut...


in otherwords you should learn all you can before you start messing with some thing that could kill you!
 
Ok, first off... I wasn't asking WHAT a drop pitman arm does. I've been around these things for quite a while now and think i understand steering geometry.

second, I have installed/modified more than you might realize and am more than qualified to install a simple lift kit.

third, I am just trying to save some time on researching all the little things. things like...at what height do you USUALLY need to do an sye on a TJ. Most of my experience is on xj's so i think its a valid question since they have different driveline geometery.

and fourth, whats the harm in asking? Are you saying you have never asked a question before? Were you born with all your knowledge or did you ask someone questions to learn what you know now?
 
He wasn't asking why he needed a drop pitman arm and a t case drop or sye. He was asking at what lift heights do they become necessary on a TJ. Justin knows his XJ's like I do but when it comes to a TJ I would be asking the same questions because the wheelbase is shorter and the driveline angles become steeper at smaller lift heights which I'm almost sure is what he is getting at.

Edit - You posted at the same time I did Justin. I had your back. LOL
 
yea, I know the real jeeps better (xj's) not my fault a friend had to buy a tj...
 
I have an 01 Tj 3in springs in front because of winch wieght. I have 2in springs in rear. That is all I have except for 2in body lift. I have no SYE kit. I did have a little bit of front end wobble so I put a drop pittman arm on and it worked a lot better for vibration. Also run 35s and cut the flares flat to allow more room. I hope this helps

I did not order any kit, just the pieces off of Ebay and 2.5 in lift SSV(trailmaster) shocks
 
just helped a friend put on a 3.5" rubicon xpress lift + 2" spacers stacked for 5.5 total inches. (on a 2000 tj) at the time of the install, we installed a slip yoke eliminator and custom driveshaft. i don't know how versed you are with the inside of a transfer case, but to install a sye, you have to take apart almost the entire t-case.- in cased you didn't know. so t-case spacers are easier, but someone correct me if i'm wrong, but you can go higher with a sye kit.
 
The t-case drop will only get you a couple of inches, if you're going over 4" you'll need the SYE kit. 4" and under can use the t-case drop, but you will lose some ground clearance. Normally, anything over 2" will come with trac bar drop brackets and a matched drop pitman arm if you're buying in kit form. If you're putting one together from various companies, you will most likely need to drop both at anything over 2". Just pick up the arm/bracket that would be used with whatever lift hieght it will be in the end.
 
Yeah Jameson, The SYE can be a bear to install but does give me more versitility when varying lift heights. I never had to drop the pitman arm (just remouted the front trackbar on the axle side-never had a prob since (( over a year now))).

As for the comment on xj's being "real jeeps" :fuck-you:. Real jeeps have two doors and round headlights:driver:
 
hscrugby said:
I always maintained Suzuki Samurai's were real jeeps. Now I have proof.
Score.
:flipoff2:
Click to expand...
wait..wait..wait...he left the part out about saying the word JEEP, I understand everybody deep down wants a Jeep. Driving something like a jeep is like sex wih a fat girl...its fun but you wouldnt want your friends to know:flipoff2:
 
The last time I heard that line I was to young to laugh, so I rolled over in my crib and crapped myself:beer:
 
i've installed several SYE kits (advanced adapters kit) and its no problem at all.

transfer cases are nothing but gears and chains, nothing too complicated.

once again, the work isn't a problem, just wanting to see if i need to put in a sye for a 3 inch lift or for a 4 inch lift. same with pitman arm.

thanks for everyone not flaming me for asking a question...and my xj does have 2 doors...when i pull the front ones off. And i've actually been thinking about doing a custom front clip on my 99 to have round TJ headlights...but then it might not be as capable on the trails.

J/K
 
been thinking about doing a custom front clip on my 99 to have round TJ headlights...but then it might not be as capable on the trails.

...also nice

I believe the answer to your question is: it depends
There are lots of tj's around the Wilmington area that are running the transfer case drop. I assume you want to save money with the drop instead of the cashing out for a SYE and shaft. Some things you can do, if you are still having driveline vibes, is lengthen your rear upper control arms (several ways of doing this), which inturn changes the angle between the shaft and the rear-end (you probably knew this). For a 4" lift (other TJ folks correct me if I'm wrong) you may want the SYE. I think I have a T-case drop (new, Rubicon Express) you can have (If I can find the thing). PM me if you want to give it a try.
 
blazeproc said:
I have an 01 Tj 3in springs in front because of winch wieght. I have 2in springs in rear. That is all I have except for 2in body lift. I have no SYE kit. I did have a little bit of front end wobble so I put a drop pittman arm on and it worked a lot better for vibration. Also run 35s and cut the flares flat to allow more room. I hope this helps
I did not order any kit, just the pieces off of Ebay and 2.5 in lift SSV(trailmaster) shocks
Click to expand...
You either have more total suspension lift or have a lot of bump steer
 
hscrugby said:
Wow.
So what your saying is no one should ever ask questions or try and learn anything about their rig? Oh yea, and after your rant, you send him off to a thread about XJ's? He was asking about a TJ.
As for the OP's questions.
Drop pittman arm, you should only need it if you are going with a track bar relocating bracket in the front.
The tcase drop or SYE is a little different. Some people's Tj's seem to work with 3" susp lifts, and no vibes. Others can't even do a 2" spacer lift without vibes.
Click to expand...
What he said.
But, any lifted TJ really needs a SYE, eventually. And not just for vibes.
Chuck
 
I just installed a 3.5 inch RE lift on my TJ. YOU NEED the SYE. I dropped the transfercase and I'm still geting a slight bit of binding under throttle. I'll have a Woody by the end of the week ;-)
 
Zachs said:
YOU NEED the SYE.
Click to expand...
That's sort of a broad statement. I run a 4" lift on my TJ and ran a t/c drop vibe free back in the day. As someone already stated, TJs seem to vary on what they do or don't need. My friend was running a 3" lift with no SYE and no drop, vibe free. I've seen people get vibes from a 2" BB and have to do a drop.
 
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