I ran into the same problem on a late model Focus. The inner tie rod was totally smooth, no wrench flats. I took a die grinder and ground a small area on the inner tie rod socket, then used a strap type wrench (basically a piece of square tubing 1/2 " inside with a nylon strap on it) with an extension and breaker bar to remove the tie rod. The small flat or dimple will give the strap wrench enough grip to break the tie rod loose. It worked for me, saved me from pulling the rack. Good luck.
