Product Description
The BD DIESEL 1064724 TowMaster Allison 1000 Transmission is a purpose-built heavy-duty replacement transmission engineered for 2004.5–2006 Chevy Silverado and GMC Sierra trucks equipped with the LLY 6.6L Duramax and a 5-speed Allison 1000 automatic transmission. Designed specifically for towing and work applications, this TowMaster unit delivers increased durability, improved clutch capacity, and enhanced torque handling compared to a factory transmission.
Each TowMaster transmission is assembled using upgraded internal components, reinforced clutch packs, and BD Diesel’s proven hydraulic and valve-body improvements. This results in firmer, more controlled shifts, reduced clutch slip under load, and long-term reliability for trucks that see frequent towing or heavy use. This transmission is built for 2WD applications only and is supplied as a complete unit, ready for installation.
Fitment
- 2004.5–2006 Chevy Silverado 2500HD / 3500HD
- 2004.5–2006 GMC Sierra 2500HD / 3500HD
- 6.6L Duramax LLY Diesel Engine
- Allison 1000 5-Speed Automatic Transmission
- 2WD models only
Key Features & Benefits
- Heavy-duty TowMaster build for towing and work use
- Upgraded clutch packs for increased torque capacity
- Improved hydraulic control and shift quality
- Designed to handle increased load and heat
- Direct-fit replacement for factory Allison 1000
Is this transmission suitable for towing?
Yes. The TowMaster series is specifically designed for towing, hauling, and work trucks that demand increased durability over a stock transmission.
Is this transmission for 2WD or 4WD trucks?
This part number is for 2WD applications only. It will not fit 4WD trucks.
Is a core required?
Yes. This transmission requires a refundable core return. Core policies apply at time of purchase.
Specifications for BD DIESEL PRODUCTS 1064724
| Specification | Details |
|---|---|
| Brand | BD Diesel |
| Part Number | 1064724 |
| Transmission Type | Allison 1000 – 5-Speed Automatic |
| Drivetrain | 2WD |
| UPC | Not listed |
| GTIN | Not listed |
| Shipping Info | Freight shipping required; core charge applies |
| Prop 65 | California Proposition 65 Warning |
