Power Assited Steering pump

My 1970 XKE 2+2 coup power assisted steering pump (PASP) is leaking again. I had the PASP re-sleeved and a new seal re-build in 2003. Terry's Jag no longer re-builds PASP. Does any one know where I can get the PASP re-built in the Washington DC area?

I was told that a GM pump would work but the individual who told me does not know the year or model of the GM with a PASP. Does any one out there know?

Any advice would be greatly appreciated.