What year A body? Does the upper shock still mount in the C channel crossmember? I believe I would want to be sure that crossmember is still firmly attached to the floor pan at the top and the frame rails on the ends. By the looks of the spot welds on the right side that appear to be pulled and the spot welds on the left that don't appear to have had any stress, I wonder if the spot welds on the left side have failed. The elongated hole on the left side shock bolt hole emphasizes that theory. I would have some concerns about the crossmembers condition.
It looks like you have some hole reinforcing to do, once the crossmember is secured again. Gene