This is a door rod holder for some 80s-90s Nissans, I designed this for use on a 1988 300ZX, but works on other models from my understanding. I designed the top part that holds the rod to be beefier than the original, so it shouldn't break as easily as the original design. STEP file included if someone wants to remix it and modify my design
Installed today and it works as well as the original as far as I can tell.
I printed this laying on its side (rod hole vertical), with supports. Technically it could probably be printed upright, but by laying it on its side, all the layers under stress are going to be on one plane... If printed upright, it might break at the layer line while twisting it into the door. I printed in in 0.12 for strength and dimensional accuracy
The author hasn't provided the model origin yet.