IH Farmall 656 gas/ IH 240 Utility/ 2, Super C Farmalls/ 2, Farmall A's/ Farmall BN/McCormick-Deering OS-6/McCormick-Deering O-4/ '36 Farmall F-12/ 480 Case hoe. '65 Ford 2000 3 cyl., 4 spd. w/3 spd Aux. Trans
It seems Dad rebuilt one years ago, for a "spare". Got it for a few bucks at an auction... And seems in the parts inventory over home, there is another spare set of innards for one.
Did a little Google search, and after finding out they are technically called an "overrunning coupler", I did find a repair kit, or rather kits... This is a link showing the price for a Hub City brand ORC repair kit. Doesn't go into detail as to what is in the kit though...