2pc lower lock side door glass run channel guide for all 68-70 B body coupe/post (the cars with rear quarter pop out windows). These line the metal channel that guides the rear edge of the door glass. See Mopar Parts Manual diagram.
Applications include:
1968, 1969 and 1970 Belvedere, Coronet, Roadrunner, Satellite (Not Charger, Daytona or Superbird - they all have roll up rear windows, not pop out)