Use these parts to mount the shifter base to the B18 & B16B ( US & JDM) linkage. (x3) M6x1 nylon locking nuts, (x3) M6x1x18mm stainless bolt, (x2) M8 Flat Washer, (x1) M8x1.25x60mm stainless bolt, (x1) M8x1.25 nylon locking nut & stainless steel pivot spacer.