[Jonboy]

James is close. For 73-74, the Custom series is the base model (no trim), Custom Deluxe is the mid level (small trim in the center, still no map pouch), and the Cheyenne and Cheyenne Super used the one on the right. In '75, Custom Deluxe became the base trim, Scottsdale was the mid trim, and Silverado the upper level trim. The armrests are the same for all 3 trim panels.