I have a 34 Ford , I just did repairs on the door panels , got some thin aluminum, cut it in a square or to conform to the area needing repair, folded it so that it went about an inch in and tucked it under the material with a hole on the side with the panel clip, put the clip in place and used hot glue to secure it, also the hot glue to hold any areas where the material needs to be secure, also used aluminum backing circles , for the spring to ride on where the handles are located .