73-79 Ford Kit
Do you have a kit for the 73-79 Ford trucks, or will the 63-66 work? Using mandrel bent rails/custom frame, so I can make the width adjustments if need be.
We did a few prototypes for the 67 and later trucks. The stock frame didn't allow for a clean installation, and the track width was about 4" too narrow. The wheels were far inboard and looked funny.
Widening with longer custom made control arms might be a solution to this, I haven't worked out the geometry to see how they would handle.