We have "roll stock extrusion" material available for the rear windshield on a '66 Valiant....
Roll Stock Extrusions Seals:
These Seals are Molded Extrusion pieces - a requirement due to the rather limited usage. They fit and work as well as the one piece seals. Just butt the ends with the gel-type superglue and install.
GG-W45....1966 Valiant/1963 Dart...Top seal – Backglass (use with #GG-W46)...$205
GG-W46....1966 Valiant/1963 Dart...Bottom Seal – Backglass (use with #GG-W45)...$205
FABO member
@Jim Kueneman recently used these seals on his '66 Valiant. If you search the "Member's Restorations" section, you can find his thread where he installed these on his car.
While they may not be the most ideal seals, I seriously do not forsee any companys that are willing to lay out the needed "up-front" cash to produce the one-piece seals for such a limited use.
1966 Factory V8 Valiant Signet Restoration For My Other Daughter
1966 Factory V8 Valiant Signet Restoration For My Other Daughter