SKU: 21481930421

BD Roadmaster Allison 1000 Transmission & Torque Converter Package 04.5-05 GM 6.6L Duramax LLY 4WD

$3032.10 $3369.00
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Ships within 48 hours · Estimated delivery Aug 1 - Aug 6

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Description

BD Roadmaster Allison 1000 Transmission & Torque Converter Package 04.5-05 GM 6.6L Duramax LLY 4WDIf your Allison 1000 is starting to show its age or you're looking for a solid upgrade to handle more towing, tougher terrain, or just everyday use with confidence, the BD RoadMaster transmission package is exactly what you need. Built specifically for the 2004. 52005 Duramax LLY. This transmission isnt just a basic rebuild, its a carefully engineered solution designed to bring enhanced durability and performance to one of GMs most popular platforms.

If your Allison 1000 is starting to show its age or you're looking for a solid upgrade to handle more towing, tougher terrain, or just everyday use with confidence, the BD RoadMaster transmission package is exactly what you need. Built specifically for the 2004.5–2005 Duramax LLY.

This transmission isn’t just a basic rebuild, it’s a carefully engineered solution designed to bring enhanced durability and performance to one of GM’s most popular platforms. The magic starts with a modified valve body that improves overall clutch performance and lifespan. Inside the transmission, BD keeps the stock clutch counts, but doubles the torque-holding capacity in the failure-prone C2 and C4 clutch packs, giving you far better holding power and way less slip, especially when towing or under heavy load. To help keep transmission temperatures under control, the RoadMaster package includes BD’s signature deep cast aluminum pan, which adds an additional 3.5 quarts of fluid capacity and helps dissipate heat much more effectively than stock. Every RoadMaster transmission also comes with BD’s billet ProForce torque converter. This converter is designed to deliver strong, consistent clutch engagement, even when the heat is on. Whether you're tackling steep grades with a trailer or cruising empty, the ProForce torque converter ensures your truck responds smoothly and confidently.

Before it ships, each unit is dyno tested for quality and performance. When it comes to peace of mind and real durability, the BD RoadMaster doesn’t mess around, it’s built to last and ready to work.

SHIPPING POLICY - Due to the size and weight of transmissions, they cannot be shipped through traditional couriers, such as UPS, FedEx, USPS, etc. and MUST be shipped via truck freight. We do not offer free shipping on transmissions, however, we do offer a very competitive rate charged at checkout. Once your core transmission is ready for pick up, you just need to give us a call or send us an e-mail with your original order number and the core tag on the transmission, and we can supply you with a quote on the return shipping as that is not covered in the original shipping cost. Otherwise, we give you the option to coordinate the return shipping on your own and independently pay your courier of choice. As always, if you have any questions, give us a call or send us an e-mail.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 21481930421

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4.8 ★★★★★
Based on 26 reviews
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D
Waukegan, US
★★★★★ 5
Size up 1
Size: Medium, Color: Pink
Great dress! It is your typical athletic material. The pink is pretty and matches the picture. Definitely size up 1! My child is a S and I sized up to M based on other reviews. It fits well and is a great length.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 11, 2026
R
Verified Purchase
Randy
New York, US
★★★★★ 5
Great product
Size: Large, Color: Pink
Good product. Worth the buy
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
K
Verified Purchase
Kristin Lane
Lexington, US
★★★★★ 3
Runs Small
Size: Medium, Color: Pink
My daughter usually wears a 7-8. Size 8 pants have to have the elastic pulled tight. I got the size M (8 years). It was way too tight on her. Had to send it back. We did like the way it looked and felt, but just too small.
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Reviewed in the United States on February 19, 2026
S
Verified Purchase
soheila
Houston, US
★★★★★ 1
too small
Size: Large, Color: Pink
I returned this dress; it was too small, and they didn't give me back my money.
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Reviewed in the United States on March 2, 2026
E
Verified Purchase
Elizabeth H.
Los Angeles, US
★★★★★ 2
Runs very small
Size: X-Large, Color: Navy
Good quality but runs very small, does not even come close to fitting
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026

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