My car gearbox problem

Well here is a little true story about my Nissan Micra Hollywood 1995. It started about 3 months ago and a scratching sound appeared when driving. It was shuttle and quite and at this point and of my car parts could be to blame. I thought it might be the car engine in which case i would have sold the car for scrap since it is worth nothing. Anyway.I was not too bothered about the noise, i got to