Replacing the compressor on 1997 Tahoe LT 2 door 5.7L, it has C60 front A/C. The old accumulator has the factory sticker on it and it says the refrigerant capacity is 3lbs. of R134. I can't find any chart that agrees with the factory sticker, they all say 2 or 2.25lbs. Could someone look at their Tahoe and see what the sticker says on the accumulator?