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Take your early Duramax drivetrain to the next level with the BD Diesel 1064704SS TowMaster Allison 1000 Transmission & Converter Package. Purpose-built for towing and daily duty, this upgraded 5-speed transmission is paired with a matched performance torque converter and engineered with high-capacity clutch packs, revised oil circuits, and a heavy-duty pan for superior durability and heat management. If your LB7 is due for a replacement or you're planning for longevity, this is your go-to transmission upgrade.
💰 $2,100 Refundable Core Deposit Required
⏱️ Estimated Install Time: 9 Hours
TowMaster Transmission Highlights:
BD Aluminum Deep Sump HD Pan (adds 3.5 quarts for better cooling)
High-energy frictions and revised oil circuits
Upgraded converter lock-up valve boosts lock-up pressure
A & B trim valves deliver full clutch pressure
Dyno-tested for verified performance
Enhanced clutch capacity:
C1: 8 clutches (+14%)
C2: 7 clutches (+17%)
C3: 7 clutches (+75%)
C4: 7 clutches (+17%)
C5: 7 clutches (+17%)
BD Torque Converter Highlights:
Enhanced stall for street/towing response
Torque-multiplying cast aluminum stators
Furnace-brazed fins for durability and fluid coupling
Lower rpm launch than stock for improved drivability
Triple lock-up clutch material for greater strength
Stamp-forged steel cover resists warping under heat
🧰 Note: Converter and transmission are dyno-tested as a matched set.
2001–2004 Chevrolet Silverado 2500HD/3500 6.6L LB7 Duramax (4WD)
2001–2004 GMC Sierra 2500HD/3500 6.6L LB7 Duramax (4WD)
⚙️ Fits vehicles equipped with the Allison 1000 5-speed automatic transmission.
BD TowMaster Allison 1000 Transmission (fully assembled)
BD Triple-Torque Performance Converter
BD Heavy-Duty Deep Sump Transmission Pan
Dyno-tested matched transmission and converter
Internal upgraded clutch packs, frictions, and trim valves
BD Diesel’s transmission and torque converter packages are engineered for heavy-duty use with precision-calibrated pressure systems, increased clutch capacity, and dyno-verified durability. Designed to outperform OEM units, BD products deliver the torque-holding power diesel owners demand—without compromising drivability or reliability.
We are open Monday-Friday from 8am-6pm EST
Yes, customers located in and around the the Piedmont area are welcome to pick up their items from our retail location during normal business hours. Our address is:
Elite Race Fab
1514 Holbrook St Suite D-F
Greensboro, NC 27403
Elite Race Fab offers free ground shipping & handling to our retail customers within the lower 48 contiguous United States on most orders totaling $159.99 and higher, when the item being purchased is not a Freight/LTL item! Orders under $159.99 will be subject to a nominal $13.99 Flat shipping charge. Some exceptions and/or exclusions apply, in those scenarios you will be advised of any additional charges in the item details/description stating shipping exclussions/freight shipping required etc.
In regards to expedited and international shipping each order will need to be quoted on a case by case basis. You can obtain a quote two ways:
- From your shopping cart select "Request a Quote" prior to placing your order. We will review your proposed order and promptly respond with shipping estimates.
- Complete your order ahead of time indicating either expedited or international shipping during the checkout process. We will promptly determine shipping rates for your order and email you for approval and additional payment.
-Give us a call and we can ensure your item is shipped right then, to ensure you have it in time for your deadline.
We have been committed to offering all of our customers the lowest pricing throughout our website day in and day out. We value your business so much that we go a step further than our competitors. We use a third party software that proactively monitors all our competitor's websites/pricing so that we can make adjustments accordingly if needed to have the lowest prices. Thats right, no need to spend hours searching for the lowest prices, as ours will be the lowest.
As far as price matching, we dont want to write a check we cant cash, but we certainly want to earn your business. With that said, we will go above and beyond to match our competitor's pricing when it is needed. Simply email us, click the live contact button, or give us a call and be sure to have a link to our competitor's site and please factor in any shipping and handling their website will be charging. We will then ensure you get the lowest price, and either match or beat their pricing.
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