Can you see how the 1960 caps are smooth & w/ blue paint, but without lines ? Don't get me wrong, they'll snap right in place, but it's just
the wrong cap for a 1955 to 1959 GMC.
1960 GMC 1/2 ton Hubcap
1955-59 GMC 3/4 ton painted Hubcap
55-59 GMC Hubcaps
1955-59 GMC 1/2 ton chrome Hubcap
57-59 GMC 1/2 ton Napco 4x4 Hubcap