The clutch assembly allows you to change your transmission speed while you are driving your 1988-1990 Nissan 240SX. It is important to change speed from time to time so that your Nissan 240SX can adapt to the changing road conditions. Continuous changing of speed, especially during long drives, will wear out your clutch. When this happens, you will eventually find a difficulty in changing speed. You have to replace the clutch assembly to restore the swift speed change. In the process of replacement, you have to align the clutch disk with the pressure plate and the flywheel so that the engine may be installed without binding. This is a crucial process because if alignment is not attained, there will be difficulty in the process of changing speed, no matter how new your clutch assembly is. The tool that you can rely on in replacing and aligning the clutch is the Centerforce Clutch Alignment Tool. This is placed at the center of the clutch disk and aligns it with the pressure plate and the flywheel. This C7850001 Clutch Alignment Tool is durable enough and can even last for a lifetime if properly used. Once the alignment of the clutch assembly is restored in your 1988-1990 Nissan, shifting of the gears will be a smoother process. Our website offers this tool at a reasonable price. You will be assisted by our competent sales representatives when you shop with us.