No way to know the true number. I had one that I sold last year and still have a copy of the sticker. A/C was a $631 option on a 1981 Scrambler. Compare that to $2,399 for the Sport (SL) package and $409 for automatic transmission. Total sticker on this one was $11,572.
This is what I don't get. A/C sounds like a nice option, and I use it all day, every day in my DD for about 8mos out of the year here, but it would be absolutely useless in my CJ8. Might as well buy a pack of ice and lay it on my lap.
Even with top off I welcome A/C at stoplights. Also defrosts glass in rain winter.
Who wants to look like sweating it out in their classic.
I've got pic somewhere of Muddie Buddie blowing 33 degrees on 100 degree day.
Vintage Air parallel flow condensor and R12.