There are 5 studs, I have some so-so pictures, but have not been able to figure out how to post them. The rearward stud is located at the kickup at the rear of the door and are evenly spaced along the door, with no stud at the front edge of the door. I don't have the stud measurements, but they are positioned so the top of the moulding runs along the top edge of the rocker. The front and the rear of the moulding are attached to the quarter panel and front fender with a screw. If you want the pictures, send me a PM with your e-mail and I will e-mail them to you.