It looks to me like you have a mismatched set there...

Have a look at post #28 in the 'Tiller Discussion' thread: (link below) to see the tiller fitting that matches the head fitting on the tiller shaft.

Mine matches that. (It is a 3 sided channel shape not just the two tangs... Although I have heard of other boats having only the two tangs....

http://www.pearsonariel.org/discussi...5&postcount=28