I think Tru-Turn has what you need
A style
http://www3.omnimodels.com/cgi-bin/w...I=TRUQ5305&P=0
B style
http://www3.omnimodels.com/cgi-bin/w...I=TRUQ5306&P=0
They make more than one size. You'll need to measure your prop hub to determine which size to get.