The BD RoadMaster Allison transmission is built for reliability and peace of mind. Designed for stock or mildly modified Duramax GM Trucks, the RoadMaster increases durability with a modified valve body. These modifications increase the torque capacity of the clutch packs, including doubling the capacity of the failure-prone C2 clutch! The transmission also receives a BD Diesel Deep aluminum pan, for an additional 3.5 quarts of fluid, helping to keep transmission temperatures cool while towing. Every RoadMaster Allison transmission package includes a billet ProForce torque converter and is dyno tested before shipping.. Increased clutch torque holding capacity (double capacity for C2 and C4 clutches), for less slip while towing. Increased Clutch Torque Holding Capacity [Double Capacity For C2 And C4 Clutches] For Less Slip While Towing. BD Diesel 04-06 Chevy Silverado / GMC Sierra 6.6L 4WD Roadmaster Transmission & Converter Package. Deep aluminum pan for additional 3.5 quarts of fluid capacity to help keep temperatures lower. ROADMASTER TRANS PKG ALLISON SIERRA/SILVERADO 2500HD/3500HD 6.6L DURAMAX 04.5-06. Billet ProForce torque converter for reliable converter clutch apply. Roadmaster Transmission Kit; Allison; Incl. Converter Package;. Stock clutch counts in transmission. Automatic Transmission Assembly. Roadmaster Transmission Kit. TRANS SIERRA/SILVERADO. Auto Trans Assembly. TRANSMISSION

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