Thanks for all of the ideas. I think, but I don't know for sure yet, but many of the parts look like what I am finding for late 50s and early 60s Chevrolet cars. I think I can find parts to patch my setup back together by going that route. I took my p/s pump apart and could not find any problems. It is a vane style pump, which leads me to believe this is a fairly low pressure system. My gauge probably was too high of a scale. The splines in the p/s pump drive were in excellent shape, and the vanes were all there and undamaged. I can't believe the pump has a problem. I think my troubles are elsewhere, most likely the seal on steering cylinder ram itself. Thank you for the links and insight. I think I have a plan for my next move now.