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Thumbnail Filmstrip of 2007.5-2010 6.6L LMM Duramax TowMaster Allison Transmission & Converter Package 4WD BD 1064744SS Images
The BD Diesel 1064744SS TowMaster package pairs a rebuilt Allison 1000 transmission with a matched BD torque converter for 2007.5-2010 Chevy Silverado and GMC Sierra 2500HD and 3500HD 4WD trucks with the 6.6L LMM Duramax. The factory Allison runs thin clutch packs and low line pressure, so added power and heavy trailers lead to slipping, heat and burned clutches. This package is built to hold that load day after day.
BD adds clutches to the packs, uses high energy frictions, revises the oil circuits and installs new A and B trim valves so the clutches see full line pressure. A new converter lockup valve raises lockup pressure, and the pair is dyno tested together before it ships with BD's deep aluminum pan. Core required, refundable deposit at checkout.
Key Features & Benefits
- Increased Clutch Count: Extra frictions across the C1 through C5 packs add holding capacity over stock.
- Revised Hydraulics: New A and B trim valves and revised oil circuits deliver full line pressure for firm, consistent shifts.
- Matched Converter: Enhanced stall converter for street and towing, with cast aluminum stator, furnace brazed fins and a double cage stator sprag.
- Deep Aluminum Pan: BD HD pan adds about 3.5 quarts of fluid capacity to help control temperature.
- Dyno Tested: Every transmission is tested on BD's dyno before it ships.
Technical Specifications
- Manufacturer: BD Diesel Performance
- Part Number / SKU: 1064744SS
- Product Type: Transmission and torque converter package
- Transmission: Allison 1000, 4WD
- Torque Converter: Enhanced stall, street and towing
- Truck Compatibility: 2007.5-2010 Chevy Silverado and GMC Sierra 2500HD and 3500HD, plus 2007 Silverado 3500 Classic
- Engine Platform: 6.6L LMM Duramax
- Core Requirement: Core required, refundable deposit at checkout
- Warranty: 36 months or 150,000 miles on parts, 12 months or 24,000 miles on labor; race and sled pull use not covered
Vehicle Fitment & Technical Installation Notes
Fits 2007.5-2010 Chevy Silverado and GMC Sierra 4WD trucks with the 6.6L LMM Duramax and Allison 1000 automatic.
Installation Tip: Flush the transmission cooler and lines before installing so debris from the old unit cannot reach the new one. BD requires a remote filter for warranty inspection so cooler flow can be checked at the cooler outlet.
The BD Diesel 1064744SS TowMaster package pairs a rebuilt Allison 1000 transmission with a matched BD torque converter for 2007.5-2010 Chevy Silverado and GMC Sierra 2500HD and 3500HD 4WD trucks with the 6.6L LMM Duramax. The factory Allison runs thin clutch packs and low line pressure, so added power and heavy trailers lead to slipping, heat and burned clutches. This package is built to hold that load day after day.
BD adds clutches to the packs, uses high energy frictions, revises the oil circuits and installs new A and B trim valves so the clutches see full line pressure. A new converter lockup valve raises lockup pressure, and the pair is dyno tested together before it ships with BD's deep aluminum pan. Core required, refundable deposit at checkout.
Key Features & Benefits
Increased Clutch Count: Extra frictions across the C1 through C5 packs add holding capacity over stock.
Revised Hydraulics: New A and B trim valves and revised oil circuits deliver full line pressure for firm, consistent shifts.
Matched Converter: Enhanced stall converter for street and towing, with cast aluminum stator, furnace brazed fins and a double cage st[...]
The BD Diesel 1064744SS TowMaster package pairs a rebuilt Allison 1000 transmission with a matched BD torque converter for 2007.5-2010 Chevy Silverado and GMC Sierra 2500HD and 3500HD 4WD trucks with the 6.6L LMM Duramax. The factory Allison runs thin clutch packs and low line pressure, so added power and heavy trailers lead to slipping, heat and burned clutches. This package is built to hold that load day after day.
BD adds clutches to the packs, uses high energy frictions, revises the oil circuits and installs new A and B trim valves so the clutches see full line pressure. A new converter lockup valve raises lockup pressure, and the pair is dyno tested together before it ships with BD's deep aluminum pan. Core required, refundable deposit at checkout.
Key Features & Benefits
- Increased Clutch Count: Extra frictions across the C1 through C5 packs add holding capacity over stock.
- Revised Hydraulics: New A and B trim valves and revised oil circuits deliver full line pressure for firm, consistent shifts.
- Matched Converter: Enhanced stall converter for street and towing, with cast aluminum stator, furnace brazed fins and a double cage stator sprag.
- Deep Aluminum Pan: BD HD pan adds about 3.5 quarts of fluid capacity to help control temperature.
- Dyno Tested: Every transmission is tested on BD's dyno before it ships.
Technical Specifications
- Manufacturer: BD Diesel Performance
- Part Number / SKU: 1064744SS
- Product Type: Transmission and torque converter package
- Transmission: Allison 1000, 4WD
- Torque Converter: Enhanced stall, street and towing
- Truck Compatibility: 2007.5-2010 Chevy Silverado and GMC Sierra 2500HD and 3500HD, plus 2007 Silverado 3500 Classic
- Engine Platform: 6.6L LMM Duramax
- Core Requirement: Core required, refundable deposit at checkout
- Warranty: 36 months or 150,000 miles on parts, 12 months or 24,000 miles on labor; race and sled pull use not covered
Vehicle Fitment & Technical Installation Notes
Fits 2007.5-2010 Chevy Silverado and GMC Sierra 4WD trucks with the 6.6L LMM Duramax and Allison 1000 automatic.
Installation Tip: Flush the transmission cooler and lines before installing so debris from the old unit cannot reach the new one. BD requires a remote filter for warranty inspection so cooler flow can be checked at the cooler outlet.
Fits: LMM Duramax 2007.5-2010 (Automatic Only, 2WD)
Fits: Duramax 2001-2010 (Automatic Only)