Hi, Zack. I dug up an old book and found the refrigerant capacity. For 73-79 C,K series with single unit, 60 OZ. of R-12. Use 85% of that for R-134a, or 51 OZ. Oil should be Ester 100, total capacity is 11 OZ., with the A-6 compressor. Replace the accumulator,... Login to read more.