If you are going to change a water pump on a 103 engine you will need this tool or you may never get the pump off. The hours wasted can lead to extreme mental meltdown (I speak from experience :-) ). Access and clearance is so tight that a normal 3/8 inch drive extension and universal will not work. This is a quality set of tools put together for you to work right from the start. The socket is Craftsman and the extensions and universal with adapter are Stanley. Partial instructions included.
This tool comes only with instructions to get on and to remove the water pump bolts. It DOES NOT come with complete instructions on removing and replacing the pump. Those instructions are in the works and will be available soon.