I am hoping someone will know the capacity of gas in a factory AC unit from a 73-79 truck. I have a 77 f100 and I put a ebay AC unit in it from a 78. I am going to use hc12A gas and it is used at 35% of R-12 so I need the R-12 number. Thanks for your help and I wish this catered to my age truck.
BTW: why does the spellcheck not know that the f in f100 is correct
