Between 1954 and 1959 the dash cluster of GMC trucks were given a circular opening for a dealer installed clock or tachometer. These trucks left the factory with a blank-out plate to fill this opening. With most GMC’s this plate always remained in place as an option was rarely added.
The enclosed photo shows both plates used during the period. We are requesting help to identify the years each were used. Contact us for your opinion at www.oldchevytrucks.com