I built a jig from the existing suspension. Each tube bolts to the A-arm locations. the purpose of the jig was to get accurate measurements of the A-arm pivots. I then put this info into the suspension software. In the software I played with all the data points till I got a zero bump steer. This has been some time ago.
I assembled everything and I am close; close enough now I need to finish the car and work the remaining adjustment at assembly.
One thing that will have to be done is to modify the length off the raq itself. You don't make one change with out it effecting other aspects of the suspension. You pretty much need the data points in a suspension prog to get it this close.
The mount is removable and can be changed or shimmed. Plates on the rails for reinforcement and the box become a bit of a stiffener as well. I am way beyond these photos but the suspension is on hold till final assembly.
The steering box powdercoated and ready to go in:
