I had the same problem when I had to remove the wipers so I could get my new windshield installed. After searching for procedures on here and other forums, as well as Fords useless procedures, I finally found some instructions on the CDC website in the how to section for installing their washer relocation system. If you follow those instructions make sure you use a rubber or wood mallet to do the smacking on the nuts. I had neither and used a regular hammer. Needless to say I had to buy new nuts for the wiper arms from Ford at almost $5.00 a piece!!