1969 Formula S owners needs help with Variable Speed Windsheild wipers

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Oh my....do I have a lot to learn~Thank you.... I did find the pages, and our page numbers match. I've printed them out and believe I now know the correct part numbers of the pivots and crank.
LH Pivot S/B P/N: 2857935 Mine is 2857935 ! :)
RH Pivot S/B P/N: 2857934 Mine is not known! :(
Drive Crank S/B P/N: 2822272 Mine is not known:(