Pics of 4 link systems

I'm building both, first I'm building a parallel for our shop truck, because that's easier for the steering to work around.

Second I'm gonna build a trianglelated for our drag car.

Both require a lot of thought but remember they both do the exact same thing.

The difference is the panhard bar. That bar is all that hold your axle side to side.

It has limits as to how far it can rotate do to its mount.

No telling what failed first in our last set up but something let go. I'd bet the Panhard locked up causing the parallel links to bind. Then all hell broke loose, pinion sheared off, the axle twisted, the the four link bent and the drive shaft wanted to be in the car.