1967 GTX, 1968-69 Cuda/Barracuda flip door. Gas cap

4spdragtop, I did some additional research and it seems that there are other numbers concerning this cap. There seems to be part numbers that either replace or supersede the OE part number 2822339. I found one bit info on the B-body forum that mention the part number on this cap applying to the 1967 GTX, 1967-68 Charger and 1967-69 Cuda/Barracuda. Go figure, I can only go by the original factory part number for application. Thanks, Al