Guest rodfraser Posted July 25, 2010 Share Posted July 25, 2010 Please can any one give me information on the semi auto gearbox fitted to my recent purchase .ie. how to drive and lever positions ? as I dont want to cause any damage to transmission. Link to comment Share on other sites More sharing options...
bifda Posted July 28, 2010 Share Posted July 28, 2010 Rod, I just did a quick google search and it looks like this type of transmission is called an AST - Automatic safety transmission, apparently the reason for the name is due to it being classed as safer due to not having to manually change gear. There is probably some more info out there, regading how it is actually operated, I will have a lookWayne Link to comment Share on other sites More sharing options...
bifda Posted July 29, 2010 Share Posted July 29, 2010 Getting there and learning along the way.See http://ateupwithmotor.com/technology/246-hydramatic-history-part-1.html?start=1Wayne Link to comment Share on other sites More sharing options...
1939_Buick Posted July 29, 2010 Share Posted July 29, 2010 The 38 Buick semi auto's are similar http://forums.aaca.org/f165/1938-self-shifter-cars-224431.htmlDave Corbin (early Buick numbers guy) owns a 38 Buick with the original autoHave a look the links in this post http://forums.aaca.org/f115/38-39-buick-exhaust-285794.html Link to comment Share on other sites More sharing options...
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