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BD Diesel 04-06 Chevy Silverado / GMC Sierra 6.6L 4WD Roadmaster Transmission & Converter Package

BD Diesel · New

BD Diesel 04-06 Chevy Silverado / GMC Sierra 6.6L 4WD Roadmaster Transmission & Converter Package

MPN 1064774SS · Store SKU bdd1064774SS

$4,676.95
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Supplier stock checked 11/7/2026, 10:14:21 AM UTC. Adding a part does not reserve it.

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Product details

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. ROADMASTER TRANS PKG ALLISON SIERRA/SILVERADO 2500HD/3500HD 6.6L DURAMAX 04.5-06 Roadmaster Transmission Kit; Allison; Incl. Converter Package; Roadmaster Transmission Kit

Manufacturer fitment & guides

Check 1064774SS against the manufacturer’s application information below.

Part-specific notes

  • Freight shipping required.
  • California Proposition 65: Y

Manufacturer documents

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