Hello and good day to everyone. I am presently experiencing an intermittent drivetrain noise that is driving me nuts. First I should say that my car get driven like once a month, so she spends most of her time sitting. The noise resembles the sound of badly worn driveshaft and only occurs between 2500 to 3500 rpms. I should also note that the noise refuses to show itself under hard acceleration. Took the car to a local shop, had the driveshafts and muffler checked out but found nothing loose. The mechanic was not sure but he told me it might be the muffler or tires. (wouldn't the noise always be present if it was the tires?) I personally think that the noise is coming from the transmission (manual) but I could be wrong. Any input on my problem will be greatly appreciated. Thanks prime.