Vent window with rear division channel seals - left and right, '63-'64 GM 'B' & 'C' body 2 & 4 door hardtop and convertible models, four piece set. R&L. Main seals replace OEM #'s 5715584/5715585. Features formable steel core inserts for proper fitment, galvanized to prevent rust. Top quality EPDM dense rubber.