1973-79 Ford Truck Turn Signal Lock Ring Profile

Needed to print half of a turn signal housing for a 1979 Ford truck, so I started here, with the lock ring/lock hole that the turn signal socket locks into.

Obviously not  full housing or part here, this is intended to get you the difficult geometry to add into another model.   

Be sure to get this right side up in your model, they are Not symetrical/reversible, and you can end up with something that the turn signal will only mount to from the inside! (been there, done that!)Compare to your signal/bulb socket as you go!