Yea the brackets was wrong but spoke with the fella that installed it and said that was what the instructions said to put them,told him to take a look at mine and showed him a picture,he agreed.
Got a few hrs on it bush hogging an I'm impressed with the power difference and stability with the rear tires filled. I mowed some tall grass that's on a 7% at least grade that would slow my L4330 as I wanted to build some heat and seat the rings and all an the tractor didn't even notice it.