I have come across several repairs for Transformers Galvatron G1 - all of them suggested using superglue, plastic weld or something similar.I decided that instead of that, I would just remodel the piece for print.
designed from scratch and reasonably close to scale - this piece is a great drop in replacement.
if you are printing it in PLA - I used trees for support and printed it upright (see image)infill is 100% but that might be overkill.also printed it at 40mm/s to keep the tolerence close.