Upper Control Arm Crack

Although $25 for a used one is a great price, you can repair this one. If you can weld, here is what I would do. Drill a small hole at the end of the crack to stop it from cracking further. This is called 'Stop Drilling'. Then bevel the crack a bit on both sides and weld the crack up. Then you need to finish all the welds so they are super smooth. That is a lot of work. The $25 piece is looking better, huh?