You must cut your headstay to install 00AL furling. You must also purchase a Harken® clevis pin to match your chainplate.
Clevis pin Ø 9.5 mm
Clevis pin Ø 3/8 in
Use with furling unit 00AL
**this pin works with the American made, TPI Marine built J/80s.
**use pin #1107 for the European built J/80s, and the American USWatercraft built J/80s.