BD Diesel Transmission - 2006-2007 Chev LBZ Allison 1000 6-speed 4wd

If you're pushing your 2006 or 2007 Chevrolet Silverado or GMC Sierra with the LBZ Duramax engine beyond what the factory Allison 1000 transmission can handle, it's time to consider an upgrade. This BD Diesel Stage 4 transmission is built to significantly increase the durability of your drivetrain, especially when you're adding more power through engine modifications. It's designed to handle up to 300% more power and torque than the stock unit, making it a solid choice for trucks that see heavy use or have been tuned for increased output.

BD Diesel has reinforced this transmission with stronger internals and extra clutches, including a notable increase in clutch count for C1, C2, C3, C4, and C5. They've also updated the oil circuits, the converter lock-up valve to boost lock-up pressures, and incorporated high-energy GPZ friction material for a 20% increase in friction surface area. The modified separator plate helps deliver short, crisp shifts, and the entire unit is dyno tested to ensure it's ready for the road. This transmission also comes with BD's rigid aluminum heavy-duty transmission pan, which adds 3.5 quarts of extra oil capacity, helps reduce case flex, and features heat-dissipating fins to keep temperatures down.

This transmission is a direct replacement for 2006-2007 4WD models equipped with the LBZ Allison 1000. It's important to note that using a third-party or OE converter will void the warranty, so ensure you use the appropriate converter. This transmission is backed by a 36-month or 150,000-mile limited warranty, but it is not warranted for race or sled pull use.