This comprehensive Workshop Service Repair Manual provides detailed instructions and illustrations for servicing and repairing Allison Transmission 1000 and 2000 series gearboxes. It covers all models, engines, trims, and transmission types across all years. The manual includes step-by-step instructions for every repair and service procedure, ensuring that you have the knowledge and guidance to perform any task confidently. Whether you are a professional mechanic or a DIY enthusiast, this manual will empower you to tackle any repair or maintenance challenge efficiently.

The Allison Transmission 1000 & 2000 Series gearboxes are renowned for their durability, efficiency, and reliability in heavy-duty commercial vehicles. These automatic transmissions are designed to handle demanding applications, powering diverse fleets ranging from delivery trucks and buses to construction equipment and military vehicles. The 1000 and 2000 Series gearboxes share a common core design but feature distinct variations in torque capacity and gear ratios to cater to specific vehicle configurations. Key features include proprietary electronic controls for optimized shift patterns and fuel efficiency, a robust construction with heavy-duty components, and a wide range of available ratios to provide optimal performance in various operating environments. The Allison 1000 & 2000 Series gearboxes are equipped with several advanced features, including the patented "TorquePro" technology, which enhances engine torque for improved acceleration and hill-climbing ability. These transmissions also boast "FuelSense" technology, which optimizes shift scheduling and engine management for enhanced fuel economy. The 1000 Series offers a range of torque capacities, from 1000 to 1600 lb-ft, while the 2000 Series extends the range further, with torque capacities reaching up to 2250 lb-ft. Both series feature a wide array of gear ratios, enabling tailoring to specific vehicle applications and operating conditions. Furthermore, the Allison 1000 & 2000 Series gearboxes are backed by a comprehensive network of authorized service centers, ensuring efficient maintenance and repairs for optimal uptime and performance throughout their long service life.