Powerflex Black Series - Mazda MX-5, Miata, Eunos MK1 NA - Motorsport Bushes
PFF36-108BLK does not fit power steering racks
For the rear diff, PFR36-121BLK is an insert to fit into and fill voids of the original bush, part number NA01-28-890. For a full replacement bush use PFR36-120BLK