Summary

steering knuckle for power wheels, to replace a broken one. this is a much stronger one than the one I previously posted.

Instructions

pretty simple - print and install. The old one was held in place w/rivets, and I had to drill them out and replace w/screws. This knuckle is a larger/stronger one than first one I printed, since the first one I printed broke after a few weeks of additional play (too many crashes into the fence at full speed, apparently).
Update: This one is still going strong, and has had a couple months and about 20 miles of rough use put on it.

Power Wheels Ninja Quad Steering Knuckle mk2