I can verify the 73-74 Dart/69 Barracuda hood swap...did it. How about BigBlock "umbrella" valve seals for windsheild wiper post gaskets on 66-70 B bodies.... Or A-100 seats in Superstockers?... Or 70 Charger Hoods and fenders on Daytonas, as well as 70 Coronet hoods and fenders on Superbirds? Or, the door glass on a 68-70 Coronet/Belvedere also fits 68-70 Chargers? Pretty well ALL of the consoles in B and C bodies of each year are the same... Back-up lights on a 69 Roadrunner bumper...same as 69 Charger rear valance...(?) Almost all 1969 Chryco vehicles have the same side reflectors....