When I disassembled the front differential of my Marui Samurai, I had to use a paper clip folded to remove the bevel gear, and it took a while.

I designed this tool to ease the extraction. It goes around the bevel gear, and enters in the space left by the diff case.

Print as precise (I did print it with 0.12 layer size on my Creality Ender 5 plus with PLA - 4 minutes print) as you can with your printer, on one of the side, so no support are required.

I assume you may use it only one or two times before need to reprint a new one.