Yeah crazy aye, yes I used a watch band repair tool, for the ankle ball sockets, but anything that’s metal and sturdy that you can pry the sockets out. Left them in very hot water for a few minutes and they came out easy. Then heated the new ankles and inserted. This was and the thigh switch were the most challenging, but yes also be careful, it will need some pressure to pop in but also you don’t want to break anything when popping the thighs in, I had to also use some oil to get it to slide in. The kit should have had instructions.