I just wanted to note that Autoshift and Ultrashift are two different transmissions. Here's a link to Freightliner specs that lists all different transmission configurations. http://www.freightlinertrucks.com/Trucks/Models/Cascadia/Specs/ Or here's the quoted text: [TABLE="class: model-specs-table, width: 100%"] [TR] [TD][/TD] [TD="colspan: 2"]Manual Eaton Fuller[SUP]®[/SUP] 8, 9, 10, 13, 15 and 18 speed [/TD] [/TR] [TR] [TD][/TD] [TD="colspan: 2"]Automated Manual Eaton AutoShift[SUP]®[/SUP] 10, 13 or 18 speeds Eaton UltraShift[SUP]®[/SUP] Plus 10 or 13 speeds Eaton UltraShift[SUP]®[/SUP] Plus 18 speed [/TD] [/TR] [TR] [TD][/TD] [TD="colspan: 2"]Automatic Allison[SUP]®[/SUP] 3000, 4000 and 4500 series [/TD] [/TR] [/TABLE]