Ken,
The interior paint was a Grey-Brown Hammered Finish and I believe the seats were either Black or Brown.
Check with some of the suppliers for more factual info.
http://www.oldchevytrucks.com/

http://www.parts123.com/parts123/yb.dll?userwatch~dynamicSearchPage~cadefefx

Here is a web site that you can see the accessories that were available for the 1946 truck.
http://www.46chevytruck.com/1946%20Chevrolet%20Truck%20Data%20Book%20For%20Chevrolet%20Salesman.pdf
Harold




Harold
Is a restoration ever finished?