I pulled mine. It does prevent some weight transfer and if its a big one its a heavy mutha too. I've driven my car around on the street and I don't really miss it too much but I don't go power sliding around curves at 90.
You can see my 65 fastback at: http://hottarod.stangnet.com/
http://members.aol.com/macstang/Gifs/macstang3.jpg
You can see my 65 fastback at: http://hottarod.stangnet.com/
http://members.aol.com/macstang/Gifs/macstang3.jpg
