It's a small hydraulic cylinder that replaces one of the two lifting links that attach to the lower lifting arms. Pretty sweet if you crown roads or do irrigation trenches. Can also use the box or scraper blade to bench in on an incline. Pretty easy to plumb in with just a shuttle valve and a few hoses. May not be for everybody though.
I looked it up. I have had some instances where I could have used one. My drive at the lake was put in running the length on a slope and to grade the rock back up on the north side I have to turn the turn buckles all the way up on one side and all the way down on the other to get the angle. I keep the threads lube with antisieze so they turn easy. I'll have to put it on my wish list. The other day my neighbor had a large pine come down and when I went over to haul it home for camp fire wood he'd cut it all 6″” to long to fit in my bucket. I kept thinking of Tin's pictures of the bucket forks. My wishlist doesn't seem to get shorter!
I know what you mean. I just bought a 2,000 lb three-point pallet fork from Agri Supply. I can use it on the rear of the dozer and on the skid steer. Cheap.