BD Diesel 1064734 TowMaster Allison Transmission LBZ - 1000 2006-2007 5-Speed 4WD

The BD Diesel TowMaster is a high-performance replacement transmission engineered for 2006-2007 Chevrolet/GMC trucks with the LBZ Duramax and 5-speed Allison 1000 in 4WD configuration. When you increase engine output beyond stock levels, the factory transmission becomes the weak link in your drivetrain. The TowMaster solves this with extensively upgraded internals designed to handle significantly higher torque loads while maintaining daily drivability.

Key Performance Upgrades:

• Increased Clutch Capacity: C1 clutch pack upgraded to 8 clutches (14% increase), C2-C5 clutch packs upgraded to 7 clutches each (17-75% increase over stock)
• High-Energy Friction Materials: Premium friction plates provide better grip and heat resistance
• Revised Hydraulic Circuits: Optimized oil flow for improved clutch engagement and cooling
• Enhanced Lock-Up Valve: New converter lock-up valve delivers higher clamping pressures for reduced slippage
• Modified A and B Trim Valves: Deliver full line pressure directly to clutch packs for firmer shifts and better holding power
• BD Aluminum Deep Pan: Heavy-duty transmission pan increases fluid capacity by 3.5 quarts for better thermal management
• Dyno Tested: Each transmission is individually tested before shipping to ensure quality

Installation and Warranty Information:

• Estimated installation time: 9 hours
• Parts warranty: 36 months or 150,000 miles
• Labor warranty: 12 months or 24,000 miles
• Important: A BD torque converter must be installed with this transmission; use of OEM or third-party converters will void the warranty
• Warranty does not cover race or competition use

Emissions Compliance: This product is legal for sale and use in all 50 states, including California. No EO number required as it is a replacement component.

The BD Diesel TowMaster transmission is ideal for truck owners running tuners, heavy towing applications, or modified engines that exceed the capabilities of the stock Allison 1000. The combination of increased clutch capacity, improved hydraulics, and better cooling ensures your transmission can handle the power while providing years of reliable service.