Basically it's a car made from every other car that GM made prior to that time.
Rear end from an x body car. Front end from a Pontiac T1000.
I took a different example back to a dealer because it kept stalling. It had set a code of the idle air control valve. I had to take it back 3 times. They eventually replaced the Idle air control valve. At that time, we were new to "computer"codes".
I can't say that if they had replaced the idle air control valve the first time, they could have gotten out of replacing the rear brake emergency adjustment.
Padding a warranty repair bill? No comment. It was a time of relatively new "computer" codes.
Essentially we're talking about shit that happened in 1985. It was 35 years ago. Don't really give a shit about it at this point. It was a long time ago.