BD Diesel RoadMaster Allison 1000 Transmission & Converter Package for 2017-2019 GMC Sierra 2500 6.6L L5P (4WD). Built for reliable towing and daily driving with proven upgrades to the factory Allison platform.

Designed for stock to mildly modified trucks, it uses BD’s revised valve body to raise line pressure by up to 68%, increasing clutch pack torque capacity. A ProForce torque converter is included for efficient transfer and dependable lockup. The BD Deep Sump aluminum pan adds about 3.5 extra quarts to help manage heat under load. Stock clutch counts are retained for familiar drivability.

Features

• BD-modified valve body with up to 68% line pressure increase
• ProForce torque converter included
• Deep aluminum pan (+3.5 qt) aids cooler temps while towing
• Allison 1000 platform; 2017-2019 GMC Sierra 2500 6.6L L5P (4WD)
• Automatic transmission assembly; stock clutch counts

Questions about compatibility or your build plan? Call us. We offer installation and customization at our Austin, Texas and Los Angeles, California area shops: Texas 512-982-9393; California 562-981-6800.

Buying multiple items? Contact us for possible shipping discounts. We install on premises at both locations.

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