and the orientation of the caliper does not provide clearance for the top mounting stud for the calipers through the bracket without the brake hardline bracket nub ground off the knuckle. There were several versions of adapter brackets that oriented the caliper differently, which would place the caliper stud bolt out of the way of the knuckle on a Z.
Cheers, JBrobst
"A life spent making mistakes is not only more honorable, but more useful than a life spent doing nothing." George Bernard Shaw