




The BD RoadMaster Allison 1000 transmission is built for reliability in stock or mildly modified Duramax trucks. Its modified valve body boosts line pressure by up to 68 percent to increase clutch pack torque capacity, and a BD deep aluminum pan adds 3.5 quarts of fluid for cooler temperatures while towing. Every RoadMaster Allison package includes a ProForce torque converter.
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