Here's a couple interior color charts. They're for 1958 Chevrolet. Unfortuantely, it doesn't specify whether it's for car or truck, so there's a bunch to choose from. I hope that they help you out a bit.

http://pc.dupont.com/hcl/search/imageViewer.jsp?imgurl=/hcl/data/Data/Domestic Cars/GM/Gm 1954-1960/CHE 1958/003607.jpg

http://pc.dupont.com/hcl/search/imageViewer.jsp?imgurl=/hcl/data/Data/Domestic Cars/GM/Gm 1954-1960/CHE 1958/003608.jpg

http://pc.dupont.com/hcl/search/imageViewer.jsp?imgurl=/hcl/data/Data/Domestic Cars/GM/Gm 1954-1960/CHE 1958/003610.jpg

~Jenny

"Custom can't be bought. It's achieved one cut at a time."

1950 Chevrolet 3100 1/2-Ton