You must be logged in and verified to contact the designer.
This is a set of T-shape dual connector housings, for both male and female connectors, 5 each.
These parts are used on Cadillac 1959, and most likely on many other GM cars.
For 3D printing, housings are connected with a wire, you can cut those away.
Designed for existing cable harness and Delphi/Packard 56 series female terminals.