BDD Transmissions

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