I e-mailed Bob Adler and this is what he sent me...
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Keith,
The 47-53 Chev truck interiors were gray-brown metallic, not champaign. I
put some of my database below. I sell the complete paint info pack for $20.
I don't have DAR, but your paint store should be able to convert. I'm
changing all my lacquer numbers to DCC Concept acrylic urethane, a better
binder. I'll put my sales pitch below, too.
Bob
Steering col. 1947-53 27627 Steering wheel, column, and gearshift remote
control
Steering col. DuPont 1947-53 DuP 8540 Steering wheel, column, and gearshift
remote control
Interior Slate Grey 1947-52 DDL3613 Looks brown met. Cabs only? J. Carter
PT107
or DCC5558 Also DuP C8306. Add flattener
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I hope this helps anyone else who may have the same question I did.