I got a free 7' back blade that someone wrapped around a tree, bent the blade and tore the mount apart.
I pulled the blade off, chained it to an i beam, and shoved a floorjack in the middle of it. After a little bit of force, I was able to get the blade straightened right back out. I left the mount on the tractor and strategically backed it into a tree a few times to get the plate bent back, and welded it right up.
This blade does the typical swivel that all back blades have, but also tilts side to side so you can set a grade or crown a driveway with it. From start to finish last night was about 3 hours. Very please with how it turned out.
You can see the 6" bow in the blade when I picked it up.
The mount is in the "straight" position for this pic, you can see how tore up the mount is based on the angle its at
Chained the blade to to an i beam and floor jacked it back straight. I ended up having to remove the cutting edge to straighten it on it's own, it took a lot more persuasion being 1" thick.
Made it within the factory specs for straightness from Woods