Grinding noise when decelerating in gear

[coldfire07]

Hey guys, I've been having a strange noise coming from somewhere near the front of my 95 s14 for a while now, and I've decided to find out what it is.

It occurs when I'm in any gear, 20mph or lower, and not touching the gas. It sounds like a rasping/grinding noise, and if I put the car in neutral or push the clutch in, it stops. Also, the sound is very faint or inaudible if the car is cold, and the hotter it gets, the louder the noise is.

I've researched and the only thing I've come up with is the throwout bearing, but I was under the impression that if the TO bearing was bad, I would hear the noise when I pushed the clutched in.

Could it be my transmission fluid? I'm not sure what's in there now, and am wondering if MT-90 might fix the problem.

Thanks.

[Onizuka]

It is probably the transmission input shaft bearing on the gearbox. Do you get a whining noise when idleing in neutral with the clutch out?