The door striker works this panel loose over decades, and once it starts moving the door drops and the striker tears out the sheet metal around it. This is the panel that fixes both problems, and where the factory used them it comes with the backside brackets that support the striker.

Auto Metal Direct 750-1370-R Door Jamb Lock Pillar Features:

• Fits 1970-1976 Plymouth Duster.
• Fits 1971-1972 Dodge Demon and 1973-1976 Dodge Dart Sport.
• Right/passenger side.
• Mounts on the rocker panel and the front edge of the quarter panel.
• Includes the backside brackets for door striker support where applicable.
• Sold individually.