what do i need to put power steering(short water pump)on my 67 chevelle bb.what other years and cars will fit or who makes aftermarket stuff

I'm no GM expert, but I would imagine the easiest way to acomplish this would be finding a donor car where you can pull the entire system.

You will need the steering box, pump and all mounting hardware, hoses and steering linkage. Check the linkage carefully as it will most likely need replacing (drag link-tie rods). You may also find that you need to reseal the box and/or pump.

MOOG is a good source of steering parts and AC Delco is a good second on parts and exchance boxes/pumps.

While you are scavaging, try to find a P/S cooler off a CHEV pickup or Caprice. Save you a lot of trouble down the road.