fenderbass146

For the last week or so I have been noticing a buzzing noise coming from the clutch or transmission on my 1999 cobra, I believe this is a t-45 trans.

When the clutch pedal is pushed down there is no noise, however when I am driving down the road with the clutch engaged, (foot off the clutch) there is an intermittent buzzing noise. If I put a little pressure on the clutch pedal it will go away. This noise is much worse when it is cold out, I live in Chicago, also once the motor warms up, it goes away for the most part.

Any ideas what this may be? I was thinking maybe throwout bearing, but I believe the noise from that issue is usually the other way around. ie When the clutch is pushed down it makes the noise