GKTech - Z34 370Z/G37 SOLID DIFF BUSHINGSThe GKTECH diff bushings 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 this listing we also offer our diff bush remover installer, which makes the job much easier and able to be done on the car, more information can be seen here; https: drifthq. com products gktech z33 350z g35 diff bushing removal installation tool