[vin63]

Originally Posted by j.files

A trac bar is such a simple concept and it is nothing like a pan hard bar. I have used trac bars with every vehicle i have ever bagged and never had any side to side movement. It all depends on how u set up your trac bar. If you mount the trac bar diagonally from one link bar to the other and not to the frame it will not move side to side. You start to get side to side movement when you mount one side to the frame and the other side to the rear end or link bar. If you look at the trac bar in the picture you will see it runs from one link bar to the other.

You still have to mount any rearend centering device to the frame. It looks like what you have is a diagonal link that runs from the front of a link mounted at a fixed frame mount to the rear of the opposite link - this is what I run on my four-link drag cars. Those work well for shorter link applications, such as ladder bars and four-links - looks like you are running a shorter link than the factory trailing arms? However, for long spans like the factory trailing arms, the bar usually has to be so thick to prevent bending and twisting that it is often impractical - not to mention drive shaft interference on lowered applications. Some of my friends have bent the diagonal links in their ladder bar suspension driving their drag cars on the street. Just a little of my experience setting up drag race and trailing arm suspensions over the years.