GKTech - 240SX/SKYLINE CHASSIS SOLID DIFFERENTIAL BUSHINGSThe GKTECH solid aluminium 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. CNC machined 6061 T6 aluminium and anodized black Available to order as front, rear or front and rear kit Front, rear or front and rear? Front only: The front diff bushes are to be used when installing an S14 S15 R33 R34 diff in an S13