I am going to convert my 90 to a r154 since my auto is dying(3rd one) and i have all the bits needed now for the conversion.I read somewhere that u need to use new snaprings,bearings washers etc with new clutch.I have ordered new bearings (throw out and pilot) all the snaprings,washers except for the thrust cone washer.It is not avaliable in aust and has to come from japan.I have the old washers and bearings from the halfcut i bought to get the needed parts from and was wondering your thoughts on reusing the "thrust cone washer" only.