1963-1964 Impala Hardtop/Convertible Door Vent Assembly Hardware KitThis 1963 1964 Impala Hardtop Convertible Door Assembly Hardware Kit is a reproduction of the original GM set. The kit includes hardware to mount 1) vent assembly 2) vent window regulator 2) window regulator 3) door release mechanism, and 4) horizontal door channel guide. The kit fits all hardtop 2 and 4 door (front only) models. Left and right are interchangeable. One kit does one door (2 required per vehicle)