BD Diesel Transmission - 2007-2010 Chev LMM Allison 1000 2wd

When you're pushing your 2007-2010 Chevrolet Silverado 2500 HD with the LMM Duramax engine beyond what the factory transmission can handle, it's time for an upgrade. This BD Diesel Stage 4 Allison 1000 transmission is built to take on significantly more power and torque, offering a substantial increase in durability for your drivetrain. You'll receive the complete transmission assembly, along with BD Diesel's heavy-duty aluminum transmission pan, which is designed to improve cooling and reduce case flex.

This transmission is a serious upgrade, featuring revised oil circuits, extra clutches, and stronger internal components. It boasts a 20% increase in friction surface area thanks to high-energy GPZ friction material and added frictions, along with modified power pistons and new return springs. The clutch counts have been increased across the board – C1 has 8 clutches (a 14% increase over stock), C2 has 7 (17% increase), C3 has 7 (a notable 75% increase), C4 has 7 (17% increase), and C5 has 7 (17% increase). This robust setup is designed to handle up to 300% more power and torque than the stock unit. The included heavy-duty aluminum pan adds 3.5 quarts of oil capacity, helps reduce case flex, minimizes internal oil leakage, and its heat-dissipating fins keep temperatures down. It also features a magnetic drain plug to catch metallic debris. The converter lock-up valve has been updated to boost lock-up pressures, and the transmission includes updated lube, regulator, and pressure release springs for improved performance. A modified separator plate ensures short, crisp shifts, and new A & B trim valves, springs, and solenoids are included to deliver full line pressure to the clutches.

This transmission is dyno-tested to ensure it meets BD Diesel's standards. It's important to note that using a third-party or OE converter will void the warranty. This transmission is not warranted for race or sled pull use, but it does come with a 36-month or 150,000-mile limited warranty for peace of mind. If you're looking to significantly increase the capability and longevity of your Silverado's drivetrain, this BD Diesel transmission is a well-built option.