Troy,The grinder is fine to grind the spot welds that you can reach with it. Only grind through the top layer,not both peices. Use a good sharp drill bit to drill the spot welds that you cannot get the grinder into. Only drill through the peice that you are removing. You can duplicate the spot welds,with plug welds. You will have to drill 1/4 inch holes in the new peice in the same spots as the original peice was spot welded. After you gring the welds,you can duplicate the spot welds by dressing them with a small amount of body filler. Before the body filler cures completely,use the eraser of a number two pencil and press it into the filler to recreate the look of the original spot welds. If you have access to a good spot welder,then you would not need to drill and plug weld the piece. It still ticks me off that the crossmember was damaged that day by the guy that supposedly does car shipping for a living,who doesn't know where to put the hook!