Wish I had a digital camera... a LONG time ago I put a set like these
http://www.truckaddons.com/Catalog/E...r_towhooks.htm (available anywhere) under the front of the frame rails, just behind the bumper. If you get this type, be sure to get the spring clip also, since the hook mounts upside-down. Pretty sure I had to drill holes... I have used the heck out of these with zero problems.