Dimensions would be great! I was drawing one up that was adjustable. The bottom shaft is made of 2 pcs of 1 1/2 x 3/16 bar stock, or 1 1/2 angle. There would have been a gap between the two pcs, and the hook arm would slide between them. The bottom shaft would have 4 holes in it for piviot points, and the hook would have 2 or 3 also. I was going to weld a couple pcs of black pipe on the back to use as sleeves, and a coupling, and then use a piece of 2" black pipe for the handle. It would slide down inside the sleeves, and thread into the coupling.
I was only planning on going up to about 24" as that's as much as I figured I could handle, but if it's beefy enough, I could always hook the winch on it from the ATV to get more power
Don't Go crazy and make it too complex last thing you wanna do is be fiddling while your out logging. Like I said it has hooked 6"-30" and is quite simple to build. I use my 4x4 on the real heavy ones and it hasn't broken yet "keep fingers crossed lol" 24" is borderline for one person to move. perhaps make removable feet that's all I would change. I'll get my tape out and take pics with tape next to it sometime tomorrow. By the way this is just an old fence post a bit of an off cut from a verandah I buit for the feet. And the claw is actually a lintel out of a 1890ish cottage some work was done on.
