Four link vs Radius arms

[alittleoff]

I have an '03 TJ and I bought a Rock Krawler 4-link rear upper (short arm) kit. The lowers are Tera-Flex. Basically, you torch off the upper brackets and the track bar mount, and weld in the upper mount (Dana 60 kit) in my case. Flex is great, no cat-back mods, and the axle goes strait up & down, no side to side yaw. It's been in there about 3 years, no probs.

Oh, and when I got the Jeep it only had the Tera-Flex lowers and the stock uppers.

Hope this helps.

Steve

[curtis]

I was wondering why nobody said anything about me runing only one front upper control arm on a short arm lift to get more articulation ?

[aw12345]

Does it really make that much of a difference Curtis?
Mine has curry upper and lowers in front and the axle flexes like mad

[curtis]

Currie is the one that started doing it. You put a johnny joint on the axle. Look at gen-right and polyperformance kits with only 3 control arms. IT seems to work better.

[Jeeperator]

Currie is the one that started doing it. You put a johnny joint on the axle. Look at gen-right and polyperformance kits with only 3 control arms. IT seems to work better.

Which one is still on the jeep driver or pass side?

[aw12345]

I like the johny joint setup for the axle end, still without it the front flexes well no problem to drop a spring at all if they are not held down at the bottom

[curtis]

Drivers side.

[sahara0207]

unless you have a right sided driver jeep

[blackZZR]

I am starting to get confused
are we looking for more flex?
or a way to straiten out the track bar problems?

I mean if flex is what is being looked for, there is a multitude of lifts that answer that in different ways.
But the track bars only a few answer corrrectly, most guys are still figuring it out.

I am not realy impressed with the systems losing the trackbar, the ones losing the rear trackbar have a few good ideas, I like the one posted earlier, but most of the front ones look like they may wander.

[curtis]

What systems remove the front track bar? And the rear track bar is part of the flex problem.

[blackZZR]

What systems remove the front track bar? And the rear track bar is part of the flex problem.

I disagree about the rear trackbar being part of the flex problem
the problem is we clock our axles to deal with drive shaft issues caused by lift.
I ran several aftermarket track bars, witch I spit on trail, then one we made and setup ourselves. which I spit. I then went and got the Nth degree rear track bar tower, Available through AEV, and have never had a problem since. In fact I had to running RE extreme lower arms to limit flex, with the Nth Jyro's my rear had to much flex.
The Nth tower allows you to clock the upper section of it removing the bind.
My rear suspension as it sits now
nth spring straighteners(my rear springs are not bent like most lifted rear wrangler springs)
nth shock relocators(relocated to the outer edge of axle)
Nth tb tower and stock tb
RE lower arms
no upper arms
Nth Stinger boom
Nth slider
OME LJ springs
OME shocks
I tried a currie bar, terra tower with RE bar.
RE bar with RE tower, custom bar on RE tower.

I am not trying here to sell the Nth setup, it is a high maintenance system most guys would not like.
I only think that you are confused between curing a problem or removing it. You need a well designed system to replace it and that can be a lot more money than a tower with your stock bar.
trust me, I spent a lot of money trying to eliminate the problem, and talked to a lot of jeep mechanics.
I am now satisfied with the bar being there as when you properly deal with it, it is a sweet system.
I watch a lot of systems on trail. I fiddle and such, Have been known to spend a day at a fabricators messing with my designs and shit canning it after one trail ride.
and I know the bind that rear bar gets into, Dukes69 and myself once spent a lot of time trying to reinstall mine after some mods he helped me with. the problem is not the bar, it is how it is mounted, once corrected that bar works extremely well and does not limit flex.

[blackZZR]

I believe fabtech either offers, or offered a system that eliminates it. Bit I need to research that.
will post back tomorrow

[sahara0207]

even with a double triagulated front you dont want to loose the pan hard unless its a full hydro...


and as for the back. like all things some carburated engines are better then some fuel injected... but FI is still the shiz.


maybe the wrong way of describin it but no matter how you set it up the TB does make the axle travel in a radius which is what the controll arms do not want to let happen.... correct me if im wrong? unless bothe uppers and lowers were straight and had nice flex joints on them. some tb set ups bind much less then others.... some so small its unnoticed. but its still their





p.s. its late and im tired so sorry if somethin i said did not make sence or came out of the wrong end lol night!

[aw12345]

you are correct it tends to bind, johny joints on all the control arms and the trackbar helps a lot having the the rod ends of the trackbar at close to the same plane in the rear will help the kicking side to side on the street but on the trail it will be noticable no matter what its the nature of the beast

[blackZZR]

we will just have to agree to disagree on this one then.
Which is nothing new when it comes to Jeeps.
I mean, you have never even tried the system and you say it can be felt. I agree that makes sense.