I 'm not sure if they used weld studs or push in metal grasshopper clips. Most moldings use a threaded stud at the ends Best to remove the interior panels as necessary . If you have the metal push in clips you need to squeeze the legs in, a small socket on a 1/4 hand driver sometinmes works or weld a piece of tubing to the end of an old screwdriver at 90 degrees to compress the legs to the same size as the drilled holes. then push out the legs with a piece of rod thru the tube. . For weld stud clips when you get the end nuts off gently pull the molding away from the body and a slight twist. use a plastic bondo spreader to work under the bottom edge to lift the molding. Most Ford moldings were designed with more curl (grip) under the top edge. Moldings that use metal clips have a wide spot under neath where the clip was inserted then slid to the mark on the assembley fixture to align with the holes. Most slide better one way than the other. ( 15 years as a Ford Engineer. a few in trim and elect).