My dad had a '76 Ford wagon with hydro boost.
I had another one that didn't.
Check for diesel gm cars they also had them.
my dad's Ford had a delco p s pump.
I am also on a full size jeep web site, there is a guy on there that can make these setups for almost just about any truck. Go to IFSJA.org and look for Elliot, or Hydroboost. I am putting one on my 83 Cherokee that I am swaping in a newer straight 6 engine. Got most of the parts from a junk yard, just need to get the mounting bracket and a bushing for my Jeep. Thought about doing this on my 71 but the brakes are still working great.
1971 F250 Camper Special, family owned since 1972
1983 Cherokee, last of the big ones, bought in Italy, family owned since 1998
1965 Corvair Corsa Convertible, 140 engine, 4 speed.
HE guides my path, forgives me when I stray and lights my life