You guys are over selling the bind on a panhard, especially for a street car. Is there some? Yes. Can a difference be felt on a street car? Not by most.

The stock Mustang setup would allow the rear end to move laterally over an inch. Like stated above most Fox and Sn95 guys converted to a 3 link with watts or panhard setup.

The issue I see with trying a oanhard or watts setup on an old Mopar, especially A body is there is no room between the axle and fuel tank for even a panhard bar and going forward kills the exhaust clearance. I believe that is why RMS uses the design they do. I would like to know if that had something to do with XV not offering a Level II a body system or if it was purely a lack of interest.