If you think thats bad the gearbox i took out is a genuine remanufactured part,even i was surprised,i am friends with the first owners son and first box got really noisey at about 50k,i have photos of it inside was covered in dark muck and input shaft front bearing had over heated and inner race was chewed up it was so noisey i could barely hear the engine,clutch was soaked in gear oil,only cost£60 for new bearing,driveshaft seals,release bearing guide tube and two stake nuts,easiest box i've ever built,i am planning on changing gearbox oil everytime i change oil to see if it lasts a bit longer!