You can use the ram assist type p/s and everything stays the same except the drag link. Requires a bracket on frame and tie rod. Column remains untouched. Used on Chevy through 1964, Mustang through 1970, and Corvette till about 1990. Next option is a power box from a mid eighties Toyota 4wd. Box mounts in same place and style as the factory box. The factory column needs cut, anchored to toe board, mated to steering shaft, and a bearing installed in column tube.
Another is to use electric p/s where assist motor is between dash and fire wall and everything outside is untouched. We used to use Saturn Vue units but the Toyota Prius is now a much cleaner install.
