Reply to "How to research car history"

The door guide screws are not accessible from the back, even with the engine and gas tank out. Drill the screw out & re-tap the threads- the phillips cross should guide the drill straight. I assume you used a hammer- impact-screwdriver? Stuck screws in this areas are a sign of rust or corrosion in this critical area of the body/frame. Once the screw and plate are out, carefully inspect the area just behind thru the hole- its a maze of intersecting supports. This area tends to collect dirt, road debris and water. The gas tanks sometimes rust through from the outside-in due to this. If there's any doubt as to the condition of the metal frame supports, you probably ought to get in there and recondition things- and that will require the engine/transaxle/gas tank and associated engine covers to be removed. Its a big, tedious no-cost-but-labor job, but allows you to justify detailing the engine bay!