Help!= Rear control arms 66 P.U.

[jimmystepper]

Hello, I blew my 66 short stepside all apart and found that the rear comtrol arms have a separation of about 1/4 to 3/8 inch about the last 2 feet along the length of the atm. How did chevy hold these 2 channels together? I expected there would be rivets but there are none. There are 5 holes through the web of the channel could I put grade 8 bolts thru them and pull it back together. Or could I weld some plate along the top and bottom? Thanks, Jimmy