1970-02-01

The Allison AT-540 Automatic Transmission for Trucks 700110

Market studies show there is a strong need for an automatic transmission for trucks in the 10,000 to 27,500-lb GVW class. After the area of the truck market is defined, the design of a new automatic transmission - the Allison AT-540 - is presented. The transmission's function, arrangement, and features are described.Also, the development program implemented to qualify the transmission for the market is discussed. Of significant interest is the durability test program, wherein a maximum of experience is obtained during this period of development.The data accumulated during the development test program indicate the objectives stressed during the design of the transmission - durability, performance, and cost - were fulfilled.

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