Has anyone determined that draglink angle (relative to the ground) or draglink/tie rod parallelism (viewed from under the truck, looking up) has any effect on bump steer? The reason I ask is:

I recently installed crossover steering on my 85 4runner. The first time around I had the draglink bolting to the pitman arm with the tie rod end down, or closest to the springs. With this setup, I had perfect steering manners but poor clearance between the leafs and the tie rod end. I put spacers in to limit my uptravel to keep the leafs off the tie rod end. The draglink angle was shallow and it was perfectly parallel to the tie rod (viewed by laying underneath truck looking up).

To address my TRE/leaf spring clearance issue, I rebuilt the pitman arm to have the TRE going in from the top. After doing so, I have not been able to adjust out the bump steer. Two things are different - first, I have more draglink angle. Second, the draglink is not perfectly parallel to the tie rod. The driver's side could go back about 1/4" more.

Before I cut the steering box off and remount it a 3rd time, I wanted to see if anyone has been able to correlate bump steer with either of these geometry situations. A couple of threads here and on POR talked about draglink angle, but nowhere can I find reference to parallelism relative to the tie rod.

Thanks for any help,

Allan