Good idea! I use a chain and hydraulics... but if there's no fuel? Chain works really well for pulling up metal t-posts. A bit more tricky with wood posts. I'll remember the clevis, that's a really good idea. Gonna swipe that one!
what happens to all or most of our old wooden fence posts is that they rot below the ground and break off right at the dirt and rock line. So there is always a stump of wood in the ground. The guys usually just put a t post next to it unless it's one of the corners LOL