Hello I have just bought a 89 civic hatchback std. I am thinking of changing it to a 5 speed. But I see the 5 speed out of the civics has the same final gear drive as my standard. So I am looking at a 5 speed out of a CRX HF. It looks like it has the same 4 gears as my standard with 5th a low final drive? Should I leave it stock? Please help me with my decision. thanks again looking forward to all the good info on this web site.