Ok so I know that there has to be cons to running a rear radius arm set up. My question is what are they? Are they important enough to detour me from building one for my xj? I was planning a set up similar to this.



I built my front suspension which is a radius arm set up. And I have seen TJ's running this set up in the rear so I know it can be done.

My main reason for not going with a double triangulated rear is dealing with all the anti squat. And I like the ease of mind with running a track bar, rather then trusting that u got all the geometry correct and that it will positively control the side to side movement.
So question is, is it worth it to build a radius arm rear?

 

rear radius arms mean
wheel hop, unloading, short bushing/joint life, TONS of antisquat, binding. pretty much it will climb like ***. and rear track bars are dumb.

triangulated links > panhard bars


with a true 4 link rear, you can tune out the antisquat and make a much more stable and consistent setup. and you can build it to be completely tuneable if you're worried about geometry then play around with a 4 link calculator some.

 

Ok, I have seen some stuff like what u have said, and some people who have run them say different. I want to just go the double tri 4 link, but I'm just hesitant on the geometry factor.
I have seen your build thread. Is it possible I can get your geometry numbers?

Axle separation
Frame separation
Lower length
Upper length
Degree/measurement of triangulation.
???

Are u happy with your 4 link?

 

a radius rear will work somewhat, but once you start giving a good bit off throttle then the weaknesses of the setup start to show themselves.

yea, ill get under there probably tomorrow and take some measurements to give you some exact numbers.
i think i ended up a little over 100% anitsquat


i am very happy with it, there is really nothing i would change. works very well offroad and drive great on the highway.

 

Thank you! And as for the throttle. I never on it. I'm a crawl type of guy. Since I have a locked Dana 30 on 35's.

 

what rear springs are those

 

Just take the time and build the a single triangulated 4 link or double youll be alot happier in the end and rear track bars are dumb just triangulate the links