return manifold o rings

J, if you are talking about the 2 little o-rings that mount under the inlet of the pressure side on the steering box, then it looks like 8518 is the part number for either autozone or advance. I was going to get them, but when I bought the pressure hose it came with them.
Or you could get them from Jimsautoparts ( SP-2325 ) but they are $35 for 2 o-rings
I had a box of o-rings that had 30 or so sizes in metric and SAE and none of them fit...