Chevrolet Silverado 2500HD Transmission & Converter Package — BD Diesel Allison 1000 Stage 4 TowMaster, Enhanced Stall, ’01–’04. A matched, dyno‑tested transmission and converter for 2001–2004 LB7 4WD trucks built for towing and dependable street use.

Stage 4 pairs BD’s upgraded Allison with the TowMaster Enhanced Stall converter for efficiency and heat control. The BD Aluminum HD deep pan adds 3.5 qt; high‑energy GPZ frictions, revised oil circuits, and a lock‑up boost valve with new A & B trim valves deliver firm apply. Increased clutch capacity across C1–C5 supports higher torque. Warranty: parts 36 months/150,000 miles; labor 12 months/24,000 miles.

Features

• Allison 1000 Stage 4 trans with matched TowMaster converter
• BD Aluminum HD deep pan (+3.5 qt)
• GPZ frictions, revised circuits, lock‑up boost valve, A & B trim valves
• Dyno tested together

Questions? Call Austin at 512-982-9393 or Los Angeles area at 562-981-6800. We offer installation and customization at both locations in Austin, Texas and the Los Angeles, California area. Buying multiple items? Ask about shipping discounts; we install on premises.

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