[Chevyland]

I thought

Deluxe knobs we’re on
custom deluxe
Cheyenne
And supers

Standard knobs were only on base model

As for foot pedals
Cheyenne and super got the deluxe pedal with the chrome trim
Because they were the only trucks with carpet

Custom deluxe or lower got standard pedal
Because they had rubber floor mats

Additionally there was only a deluxe knob for all cigarette lighters
Because the chrome center was a push button

Those are only my thoughts and observations
Not fact