They were all 4spds and the reason they are so rare is unless u have docs or the #s matching drivetrain there just a v8 malibu body according to the vin.There are no codes on the cowl tags or in the vin # and the 275 hp cars had almost all the same stuff so unless u really know these cars once they lost the orig eng and docs u can,t tell them apart....aside from a few little pieces..