Heres some Chevy and GMC dashes, some are painted very similar, GMCs did several different things to their dashes. First picture is 1960 and 1961 GMC, .
1960 and 1961 GMC Charcoal gray and Silver Gray
60 Chevy standard cab Charcoal gray and Silver Gray
1961 Chevy Custom Charcoal gray and Silver Gray
1962 GMC Charcoal gray and Fawn
This is a 1962 or 1963 GMC , the only picture I had with the green dash top and fawn, you can just see the top. This truck slipped through my fingers years ago.
1962 1963 Chevy standard cab Fawn and white
1962 and 1963 Chevy Custom cab Fawn and white
1963 GMC solid fawn interior
1964 Chevy with fawn column and wheel not custom
1964 with white column and white steering wheel.
1965 Chevy standard
1966 Chevy standard
1966 Chevy Custom
1964 1965 1966 GMC custom