Everything that Texas T says did mine last winter , best set up ......Bar NoneMake sure he has em as the reman units seem to be in short supply. I just bought the hb unit for an 84, a Cadillac mc and the lines for the 84 setup from Rock auto. Then some line and a tee to return the fluid back to the reservoir. I like the setup and would recommend a new proportioning valve on the frame while you have it apart. Also figure on flushing the brake fluid and power steering fluid while you have it apart.
But a vast bunch have plenty of success with the vac setup.