I have 3 sets of attachment mounting brackets [hook-type]. I do not know what they fit. I put one set on my Bobcat 853 to mount a Bobcat 811 backhoe, and it tilts it so far forward that th base of the backhoe drags the ground. I can send pics of the 2 sets of unmounted brackets, together with any casting and/or stamped numbers. Once I identify them, I can sell or swap them for something I need. Thanks, Dick