I just purchased a 1966 GTO, IT HAS AN AUTOMATIC TRANSMISSION,THE CAR ORIGINALY HAD A 4 SPEED, THE CLUTCH PEDAL IS STILL IN THE VEHICLE, CAN ANYONE TELL ME WHAT TRANNY I NEED? Muncie m22,m21? What numbers should I look for, so I know that I am getting the correct tranny and also the shaft. Thanks in advance GUS.by GUS SANCGEZ - Pontiac GTO Forum