I have a number of OEM door panel retainers.
The first ones are short, so probably rear lower.Two sets of rear lower (?) 62-63 Convertible, 13" long $35 USD + shipping per setOne set of rear lower (?) 62-65 2dr Hardtop, 16" long $35 USD + shippingOne set of rear upper 66-67 curved end 2dr hardtop 24 1/4" $35 USD + shippingOne set of 2 front door, upper 62-67 41 1/2" $25 USD + shippingOne piece of front door lower 62-67 44" $13 USD + shipping
1951 Chevy Styleline -- Gasser
1966 Chevy Biscayne -- Sleeper