In The 60s &70s I Purchased Parts from GM Assembly Plants. Been in Storage Until Now.
GM 4491089 Quarter Window Roller. For Two Door Sport Coupe Hard Top & Convertible.
1966-67 Chevelle ElCamino GTO Tempest leMans Cutlass 442 ElDorado Grand Prix  Catalina 
  Toronado Bonneville.        1965-69 Corvair.    1963-76 Riviera
Price is Per Roller. GM Packaging not Included