Mtd series 700 decks do not have timed blades. It sound like you have severely bent the deck. Just last week I spent 4 hours beating a 42" deck back into alignment. The lady had clobber a tree stump bent both blades and both of the the spindle mounts. I have done the same thing but worst last year by just looking back and not watching where I was going. I actually broke one my spindles as hit so hard.
