Tow hitch for Traction Hobby Cragsman 1/8 scale crawler

I made this offroad tow hitch to tow a camper trailer behind my Cragsman.
Designed to accept a Traxxas TRX-4 rod end.
The lower side of the hitch has a hex opening to hold a plain M3 nut, and the pin is an M3 screw through an M3 wing nut.
Printed on its side with 5 perimeters and solid infill. The holes may need to be cleaned up with a 3mm drill bit.
Note: Spare tyre needs to be removed.