DM, Never seen a blade on the back like that one. Looks like that thing weighs a ton. Was that the purpose of the buy?
It's just a standard 3 point back blade, except it's a HD model made to be able to take the weight/traction of a hundred hp tractor. Also, it can be adjusted to move in many more ways than a "normal" blade.
It's heavy, but that makes it "cut" good and that's why I was hired to grade the drive I was working on.
I bought "that" tractor mostly to rotary cut (brush hog) for a customer/friend that hires me every year to do a bunch of work for him, mostly rotary cutting around his "cabin",
and he likes and can afford to have things done the way "he" wants them done,
He's a super nice guy and there's a lot to do there, including some logging,
and other things, I have tractors set up to do different jobs there and around here.
DM