GMC Sierra 2500 Transmission & Converter Package – BD Diesel – Roadmaster Allison – 2017–2019. An Allison 1000 replacement for L5P 2WD trucks, paired with BD’s ProForce torque converter for dependable towing and daily use.

Built for reliability, the RoadMaster targets stock or mildly modified Duramax setups. BD’s valve body calibration lifts line pressure by up to 68% to increase clutch pack torque capacity. A BD Deep aluminum pan adds about 3.5 quarts to help control temps under load. The assembly retains stock clutch counts and arrives ready to install for consistent shifting and durability.

Features

• 2017–2019 GMC Sierra 2500 6.6L Duramax L5P (2WD) fitment
• RoadMaster Allison 1000 with BD-modified valve body
• Up to 68% line pressure increase
• BD Deep aluminum pan, +3.5 qt capacity
• Includes ProForce torque converter

Have questions or need install support? We offer installation and customization at our Austin, TX and Los Angeles, CA area locations. Call 512-982-9393 (TX) or 562-981-6800 (CA).

If you’re considering multiple items, contact us for shipping discounts. We install on premises at both locations.

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