This is a very simple, but perfectly working version of Subaru ST18675AA000, which is needed to install the front differential side oil seal (806735290,806735300), where the drive shaft enters the differential.
The model is in SCAD and allows for some customization, namely "insertion_offset", which makes a tool, that inserts the seal in a different position. Nobody will ever need this, probably - by default the install position is flush with the surface of the diff housing.
Edited: you might also want to check out another design on thingiverse: https://www.thingiverse.com/thing:1117745
Printing: I printed with PETG, 0.6 nozzle, 5 perimeters, 10 bottom and top layers, 0.2mm layer height. And it worked great, did not break durring hammering.
For 0.4mm nozzle one would need probably something like 7-8 perimeters.
ST_28399SA010.scad | 1.2KB | |
ST_28399SA010.stl | 422.0KB |