Vehicle(s): All 1966 1967 1968 GM full size passenger cars; 1966 1967 GM Sport Coupes; 1967 1968 GM Convertibles.
Size: 1.275" overall length with 15/16" diameter roller and a 1/4-20 x 1/2" long threaded shaft.
Please see photo for more dimensions.
Material: Nylon roller and plated steel shaft.