There is a color option 438 that says "Two Tone (Deluxe only)" I don't know if that refers to exterior (White top) or interior. Section 8 page 6 shows RPO 438 and 439 for more info on 2 tone exterior No. 234 color combinations for Truck models. OK Section 8 page 15 shows RPO 430 and 431 2 tone interior that harmonizes with exterior cab color.Stainless steel windshield and side window reveals, Chrome plated Ventipane frames, Right hand sunshade, Left hand armrest, cigarette lighter,twin tone horn and rear-corner windows are also included. The two-tone interior color is determined by the cab extewrior color
