The toolchanger has a Morse No.2 shank that slide-fits into the tail stock.
The tail stock as unmodified only accepts slide-fitting Morse 2 tooling, and fed by lead screw.
The lead screw is replaced by a long drawbar that secures the toolchanger. The drawbar extends further back to function as the ram feed. I got the idea of the ram feed from looking at a similar mod on this forum...
