Good member alert, I am thankful @Ddaddy

Did they just happen to be the right color?
Those back and side hard pieces were also used in B bodies.
(Chargers)
Well, not those same exact size pieces maybe, but the same type.
Chrome trim as well.

Does this mean you won't be able to cuddle with the lady next to you anymore?
Bench seats have advantages.
Just saying.
I do agree on the cuddle part, and I did enjoy my bench seat for 7 years on the road. now there will be an automatic shifter in the floor and so happy to not be using a clutch (904 heavy stack)