Allison Home | Why Allison? | 1000 Series Basics | Torque Converter & Shift Features
Automatic Grade-Braking and Passive Shift Stabilization | Easy Serviceability and Long Life


 

Introducing The All-New Allison 1000 Series 5-Speed Automatic Transmission

The Allison 1000 Series transmission is available in Sierra and Silverado 2500HD and 3500 models. It includes a feature to help slow the vehicle while the driver applies the brakes when descending long, steep grades.

 

       

 

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