Hey guys i stil cant find much reaserch on this. I dont know what most people are talking about when they say not a true 3 link and not a true 4. Like they are radius wheels or something? I dont get what radius oppse to 3 4 and stock. I know that 3 link there are 3 control arms and 4 is the same but I dont get how some arnt true

The info is out there if you look. Have a couple detailed threads on here about it too.
Radius arm has the uppers connected to the lowers vs them all having independent mounting points

Here's one: https://www.cherokeeforum.com/f67/al...qually-156124/

Just talking about three separate control arms versus a radius or wishbone radius with nothing attaching to passenger side UCA mount

So you are talking about the iro long arms. Its not a "true" three link because the upper mounts to the lower instead of running to the unibody.

I'll explain it again.

A stock front suspension on an XJ is a 4 link short arm with a panhard

Most off the shelf long arm kits are a radius setup meaning that there are 2 lower arm mounting points from a cross member other frame mount, and then the uppers are built off the lowers..they aren't a complete separate link.

In most cases here..a 4 link is simply the same setup as stock, but with long arms instead. 4 links with 4 separate mounts on the frame side.
With the addition of a panhard.

The 4 link has to have a panhard unless you run a triangulated setup..which isn't the easiest on an XJ.

A 3 link is the same as the 4 link as described above..by minus 1 upper link. So 2 lowers, and 1 upper. (Plus a panhard)

Yes. I run the IRO setup, nice setup for the price. It is not a true 3 link. It connects to the axle in 3 places but to the unibody in only two.