Chevrolet Silverado Transmission Kit – BD Diesel TowMaster Stage 4 with Enhanced Stall Converter (2001–2004). This matched Allison 1000 transmission and converter package is built for towing and daily street use on 2001–2004 Silverado Duramax LB7 2WD trucks.

Each unit is dyno tested and includes BD’s heavy‑duty aluminum deep pan for added fluid capacity. A recalibrated accumulator body and full shift kit deliver quicker, firmer shifts, while revised oil circuits, upgraded supports, and a fully rollerized geartrain enhance durability. The Enhanced Stall converter provides lower‑RPM response and improved efficiency with a cast aluminum stator, furnace‑brazed fins, a stamp‑forged steel cover, and up to triple lock‑up clutch material. High‑energy GPZ frictions and increased clutch counts further boost holding power. Warranty: Parts 36 months/150,000 miles; Labor 12 months/24,000 miles.

Features

• Matched, dyno‑tested transmission and converter
• HD aluminum deep pan for added fluid capacity
• Shift kit with line mod and lock‑up pressure upgrades
• Fully rollerized geartrain and machined supports
• Enhanced Stall converter for quicker low‑RPM response

Have questions or want a quote? Call our Austin shop at 512-982-9393 or our Los Angeles area shop at 562-981-6800. We offer professional installation and customization at both locations in Austin, Texas and the Los Angeles, California area.

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

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