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Allison transmission
         
Allison Bus Transmission

The cutaway transmission is a full working unit. It has four speeds forward and one reverse. It is powered by a variable speed gear motor and is controlled by a PC computer. Electro magnetic devices designed and built by Techcom activate the clutches. The PC computer has IO cards that operate relays to control the electro magnetic clutches. Formed acrylic panels cover the cutaway area of the case.