The file 'Subaru Viscous Coupler Rebuild Sizing Tool 3D Printer Model' is (stl) file type, size is 128.2KB.
This is specific to rebuilding a Subaru Center Differential Viscous coupler. It may help the machinist is keeping the unit together and setting the correct length of the unit for the tack-weld step prior to fully welding it back together.
Viscous_sizer.stl | 386.2KB |