GKTECH Z34 370Z/V36 SOLID DIFF BUSHES (Raised 12mm) (Order in)*NOTE* Currently is an order in product from GKTECH In Australia. Takes roughly 3 4 weeks Listing is for: 1x Set of solid diff bushes (Raised 12mm) The GKTECH diff bushes are a direct replacement of the standard items and ensure that movement of the diff is kept to a minimum within the subframe, which is quite common under hard driving conditions. In addition to limiting the movement of your rear diff, our risers raise the diff within the subframe by