ive got an r32 gtr 89 model, ive just bought a nismo coppermix twin plate clutch, a friend of mine is a mechanic and will be installing it for me, during a search on the twin plate topic and found extra parts r needed for the conversion to the twin plate. the parts include a smaller diameter sleeve bearing and sleeve carrier, and a forged pivot ball. with the clutch kit came a seperate sleeve bearing, after searching for part no.'s i found the sleeve bearing no. 30502-14601 which was seggested with the exedy twin plate, this part no. was different to the part i was supplied with in my kit which has confused me a little also there was no sleeve carrier supplied, where could i get this part if it is needed. i am in need of some good advise of someone here.