I need to use the control arms that I have on the car for now. The PO had installed the Magna kit over 10 years ago, and it is fine for now. I need to replace the ball joints on both A-arms as both of the covers are cracked. I may just replace the entire ball joint. The UCA uses a four bolt BJoint. My question? How do you reinforce the control arms. I have heard of "boxing" them but how is that done. Does anyone have any pictures of where I weld in the supports?