It's an oddball situation. Most people convert their disk with slider type nowadays.
But a C.Y.A. opportunity.
They now only make aftermarket slider type adapters for 11" and 12" disks. They do not reproduce pin type adapters.
Pin type came on 70-72 cars and sporadic mid 70's B's. So rare to find junkyard donors now. The old Mopar Action article, "Disc-O-Tech" gave slight preference to Pin-Type calipers.
