The part numbers I purchsed from Burns was
Wheel Cylinder 121FD19606 and 121FD19607
Seal (2) 061A1805B340
Shoe (4) 9993722Y285 (there is a core charge for these)
I don't recall where I got the master from but the PN I have from the parts manual is F2796. The national stock number is 2530-00-495-8860 in case that helps. As I recall I was never able to match the exact number but had to chose from parts that looked the same at the old one and selected the correct bolt spacing. Hope this helps. Let me know if you keep striking out.
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