Clearance and Jps are right-it's a skidder bucket. Ran one for about a year and a half with asplundh. It's an ok piece of equipment. Basically they take a timberjack forwarder, take everything off the back and mount a bucket and pony motor. The one i worked with was old, nothing like the one in jps's picture. Had a 50' lr1 bucket-the knuckle tended to hang out over the front a bit too far, had to be careful pushing anything with the blade. Also had four outriggers but the pads were way too small, tended to be a bit tippy if you weren't careful. Also hated the fact that the front axle would oscillate whereas the rear wouldn't-could drive over anything with the front but get to the rear and it would tend to tip plus the fact that it was topheavy made it tricky at times. Had a simple winch off the rear that was handy. Ours was a timberjack and was serviced by lyon's equipment out of little valley.