my problem car!!! when i drive it to 6rpm my gear box sounds like an grinder, you know when your grinding a bit of metal and the sparks are flying on the ground? well my gear box sounds like that from 6rpm to redline maybe there is sparkes flying on the ground, its only a little bit in 2nd like 6700 to redline then in 3rd its from 6000 to redline then thats it 4th is ok and i havent tryed 5th im to scared!!!!! any ideas , thanks