Mazda MX-5, Miata, Eunos Mk2 NB (1998-2005) Steering Rack Bush Kit - PFF36-109 PFF36-109 Steering Rack Bush Kit is made in our Purple 80A durometer material to stiffen and secure the mounting of the steering rack to the subframe. - NOTE: Price is for CAR KIT, NOT per bush… Powerflex price their bushes individually, but we have combined the quantities to make it simple!