Nissan Skyline Bronze Phosphor Transmission Bush Upgrade GTST GTR RB25 RB26 VG30Nissan Skyline Bronze Phosphor Transmission Bush Upgrade The Factory Ball bearing unit can sometimes explode from hard shifting. This eliminates the chances of ball bearing failure. Suitable for Skyline Transmissions made from 1989 onwards. This bush is made out of solid Billet Bronze Phosphor and machined to a strict tolerance to function properly. We suggest fitting these bushes with some Retaining Compound to ensure it doesnt slip spin in the seat