Roadmaster Transmission and Converter Package Allison Silverado/Sierra 2500HD/3500HD 6.6L Duramax 2004.5-2006 4WD BD Diesel
- Chevrolet Silverado 2500 / 2500HD2004–2006
- Chevrolet Silverado 3500 / 3500HD2004–2006
- GMC Sierra 2500 / 2500HD2004–2006
- GMC Sierra 3500 / 3500HD2004–2006
Before you order
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Send your year, model and engine. We'll confirm the part number before you buy.
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Delivery
Australia-wide
Usually 3–7 business days
Genuine
US & Canadian brands
Not copies or knock-offs
Support
Real people, no bots
20+ years fitting this gear
Aussie owned. 25 years in the auto trade.
About us
Normally ships within 3–8 business days
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.
Details:
- Engine Manufacture: Duramax
- Liter: 6.6 Liter
- Series: Roadmaster
- Drive: 4WD
- Ems Code: 4
- Engine Years: 2004.5-2006
- Installation Time: 9 Hours
- Transmission Model: Allison
- Fits: 2004-2006 Silverado/Sierra 2500/3500/2500 HD/Sierra 3500
- Shipping Restriction: This product does not require an EO in California. By nature of its design, it is legal for sale and use in all 50 states
- Sold As: Each
- Warranty: 24-Months
No Core Return Required
This is a remanufactured unit. In North America it carries a core charge — a deposit you get back only by shipping your old unit to the manufacturer. Returning a core from Australia is not practical, so we have built that cost into the price and you keep your old unit. There is nothing to send back, no deposit to chase, and no surprise on the invoice. The price you see is the price you pay.
Warranty
24-Months