Differential Locker for Hobby King Rattler

EDIT: Have uploaded the MK4 after realising in error in thinking. Also...printing in abs is not recomended. I may have slightly shattered a drive pin with the Mk2 in ABS. Gonna see how mk 4 in PLA goes.

So after I upgraded to a 3674 motor (yes excessive I know) I completely destroyed my rear diff gears. Since HK didn't have replacements in stock, I just decided to go for a full locked diff and avoid the issue.

If you are mad enough to try simmilar things, strip out your diff, remove the be