helping a friend of mine her a new clutch in her D15b7 del sol, and we noticed the new clutch disk splines are slightly larger than the stock cutch's are. Also the pressure plate and the clutch disk are slightly larger than stock. I was wondering if all D-series clutches are the same size or maybe if different d series clutches come in different sizes? The clutch was sold to me as a d series clutch but im begining to think its a B series or something. Any ideas?