not sure what other car defrost vents fit but here is a company in Phoenix, Az. that more than likley have the right vents for your car. The web site is
www.dvautoparts.com. The place is called Desert Valley auto parts. They have mopars stacked up 3 and 4 high. The phone is 1-800-905-8024
Thanks !! / peter
The defroster duct vent nozzles that you are looking for came on all 1966 and 1967 Dodge Coronet's and Charger's and all 1966 and 1967 Plymouth Belvedere's and Satellite's. The 1966 and 1967 C-Body cars also used a SIMILAR but NOT identical parts and should be avoided because the C-Body cars used bigger duct hoses on both ends that mate up to the duct nozzle on one end and the heater box on the other end than the B-Body cars did. These defroster duct nozzles were the same on both factory a/c equipped cars and non a/c equipped cars
Drivers side part number is 2607399
Passenger side part #2607398
Section #1-48-144 in the factory 1966 parts book
Richard