WHEN I RUN MY 86 325ES HARD THRU THE GEARS IN SECOND I GET A VERY NOTICABLE SKIP LIKE I PATTED THE GAS OR SOMETHING. IT DOES IT ABOUT TWO TIMES BEFORE I SHIFT TO THIRD GEAR, BUT IT ONLY HAPPENS IN SECOND ANY ANSWERS? ALSO I FEEL A HARD VIBRATION AS IF THE DRIVSHAFT WERE OUT OF BALANCE ONLY IN SECOND GEAR ALSO WHATS THAT ALL ABOUT?