Quote Originally Posted by RadRidesByDan View Post
the anti roll bar analogy would apply if there were no hind joint on the front end of the ladder bar.....which in his case his does....which allows for non binding movement
The binding part isn't the front heim, it is the rigid attachment at the rear axle. The axle can go only straight up and down because there are 2 bolts attaching the ladder bar to the axle tube. If you lift one tire on a ladderbar car the suspension goes into a bind because the ladder bars are rigid on the tubes and both sides need to raise or lower equally. Imagine the rear end going from the street over a curb and into a parking lot at an angle. One rear tire will have to raise before the other, with the ladder bar attached solid to the axle tube (along with those long radius bars on a hot rod that are outside of the frame rail running forward from the rear tube) the rear end cannot rotate, it is fixed rigid, so it goes into a bind. Some thing will flex or it will break.
To avoid that situation (i think roadster32 mentioned this) you can run you ladderbars/radius rods forward and angling in twards each other so that they join up near the tranny crossmember and are kinda close together with hiems. About the same as old henry did it with the wishbone.
I get frustrated, my explanations just plain suck, hope i didn't confuse you. oj