I finally got my Grasshopper installed after a lot of engineering.
As you can see the bracket only had one hole so that was the first thing I had to correct.
After I drilled bracket to fit
As you can see that back rest bracket was too long. where the bend is hit me right at my belt line. It was so far forward it pushed nearly up on the tank.
I had to straighten that first bend. I had to cut the bracket off almost to that bend.
After several cuts and fits And bends I finally got it cut down to where it is comfortable and rides good.
I think I will be satisfied with it now. I have a different seat than original but not a Mustang. I ordered it for a Mustang Seat . That is why it was too long