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           Super Turbine 300 Also known as ST300, 300THM or Jetaway. Used 1964-69 This was a two speed hydraulically controlled transmission used in some Buick, Olds and Pontiac models. It shared a FEW parts with the 1962-73 aluminum Powerglide. Don't confuse this transmission with the Jetaway 315 that was used from 1956-64. The Jetaway 315 is the transmission most people mean when they refer to a "Jetaway". Top cooler line is the cooler return line. 
          
          Band adjustments: 
          
          Gear Ratios: 
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           Transmission (click on picture to enlarge)  | 
          
          
           
          
          ![]() Pan Gasket (click on picture to enlarge)  | 
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           Click here to go to parts identification page 300THM Parts I have listed for Sale 
 
 
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