Tranny shake\ bad mount?

[powerband chaser 302]

I guess it could be clutch related but it just dosnt feel that way to me. If the drivetrain is already under load it wont happen. Like the energy is being sent to twist the trans inside the tunnel instead of the driveshaft. Thats where the delay is in loading the trans then when the trans has no where else to go the power is then send to the driveshaft then to the wheels. Then when I push the clutch in fast the trans is released from the torque and then rocks back into place making the shuttering shaking left to right sound I get. This is what im guessing at so far but untill sunday I wont have a chance to look at it. Does this make sense to you guys or anybody else have something similar happen? Then if it were clutch what would I look for that would cause something like this?


2003 GT 5spd
38,000 miles