It's not that hard to tell how it's supposed to work. Just pull up on the reverse lockout ring and see what moves at the base of the shifter. Then look at where the lugs are on the tranny the lockout block hits, so it won't go into reverse. Then assemble the shifter back on the tranny so the lug block has to raise to go into reverse. If the bend of the shifter is too far to the right, remove the bolt at the base of the shifter and rotate the locking lug 180 and put the bolt back in. BTW there's supposed to be a tapered pin in that hole. But it's apparent the dreaded PO had a hand in this.