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SKU: 311241031

2001-2019 Duramax 6.6L Allison 1000 Randy's Transmission Stage 2 725HP (311241031)

Regular price $11,146.00
Shipping calculated at checkout.


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The Stage 2 Allison is our most popular high-performance transmission for the Duramax pickups; designed to handle up to 725 horsepower. This transmission is ideal for high-performance vehicles and heavy-duty trucks that require a reliable and durable transmission that can handle high power output. The Stage 2 Allison is built with heavy-duty components and features upgraded clutches, valve body modifications, and our in house built  torque converter. These upgrades allow the transmission to handle the increased power output while maintaining smooth and consistent shifting. The Stage 2 Allison is a popular choice among performance enthusiasts and truck owners who demand the best in performance and reliability.

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