boninii

My name is Roger and i am having a problem with my drivetrain. I have a 1965 mustang with the 200 cid 3.3L motor, and a c-4 transmision. whenever I go to take off, the front of my car will jump up and grind a little bit in the center of the consel. i know it is in the middle because i put my hand there and i can feel the vibration. this happens only in first gear. if i give it too much gas it will do this but if i take off slow, it will be fine. i just had the tranny rebuilt as well. my motor mounts and tranny mounts seem to be ok. any suggestions would help. thank you.

Roger