I found a small pool of antifreeze on the garage floor and sure enough, just like so many others have experienced, the side tank on the original rad was leaking. So off with the clam and replaced it with an all welded aluminum one. That was not exactly the most fun I've had but thanks to this forum, it's in. One small problem, when I pulled the clam, the shims on the sides fell to the floor. Do they fit on the stud closest to the front or the one at the door? Thanks in advance.