2007.5-2010 Silverado & Sierra 2500 & 3500 Duramax LMM Torque Converters

While your Duramax LMM can make a bunch of power without a bunch of hassles, you may find that the factory torque converter is the first part to let you down. Tier One's selection of performance torque converters for 2007.5-2010 Silverado & Sierra 2500 & 3500 Duramax LMM trucks are all designed from the ground up to hold more power and handle heavier towing without cracking, warping, or burning up. We carry everything from uprated stock replacement torque converters meant for mild power upgrades all the way to billet torque converters with multi-disc designs that can handle huge levels of power and hard track launches. We even offer Duramax LMM torque converters with a variety of stall speeds so that you can fine-tune your transmission's operation perfectly for your application. If your torque converter has already failed and sent debris through the rest of the system, a simple replacement might not be enough, and you may need to swap the whole unit with one of our 2007.5-2010 Duramax LMM Complete Transmissions. A torque converter working hard under a heavy load generates massive amounts of heat, so keep that heat from cooking your fluid and ruining your new converter with one of our 2007.5-2010 Duramax LMM Transmission Coolers. To get the most out of your new converter, your transmission needs to apply the correct fluid pressure, so ensure your lock-up is firm and reliable by upgrading to one of our 2007.5-2010 Duramax LMM Valve Bodies. While you have the transmission disconnected to install the converter, it's the perfect time to upgrade other maintenance items, so see what else you should swap in our 2007.5-2010 Duramax LMM Transmission Parts.