First off I have to hold it in reverse and slowly let the cluch out until it clicks and goes in gear and I have to hold it there or it will pop out? Second at high speeds 90+ I get a mad vibration and kind of like a wine in between gears or if I have it in nuetral but does not make noise or shake when its in gear with the gas being applied. The higher the speed the worse it gets, I have no clue so far but I only bought the car yesterday a 97, Z28
Thanks