There are a few separate pcs to make this complete.
You will need the mount that attaches to the frame for the equalizer bar.
The equalizer bar itself
There is a "L" bracket that bolts into the round boss on the side of the transmission.
There will also be a linkage rod from the column to the equalizer bar and then from the equalizer bar to the transmission.
Adjustment is done on the rod at the transmission.
Try and find someone who has one complete preferably still on a car that will be complete.
I have a pile of them and no idea what any of them fit.
It is a huge pita with headers. At least on a A body.