Best used as replacement parts for rudders outfitted with pins and rings. Handy to have a field repair kit, no tools needed. Each kit comes with two 3/16 x 3/4 inch Clevis Pins (K193605) and two 3/4 inch diameter Rudder Pin Rings (K193563). Alternative part numbers 3490-3100, 30700041 and 9800039.
See how: Rudder Install Video part 1.