2006-2007 Silverado & Sierra 2500 & 3500 Duramax LBZ Valve Bodies

Your Duramax LBZ-powered Silverado or Sierra HD may be capable of some serious power, but the stock valve body often struggles to apply enough pressure to hold that power, leading to weird shifting and potential clutch slip. Tier One's selection of performance valve bodies for 2006-2007 Silverado & Sierra 2500 & 3500 Duramax LBZ trucks are built to handle more power and tough applications. Tier One's Duramax LBZ valve bodies use a combination of aftermarket upgrades and new OEM components to generate higher line pressures. This improves shifting, ensures solid torque converter lockup, and provides better lubrication to all critical components, extending the life of your transmission. If your transmission clutches are already burnt out from low pressure or valve body failure, a new valve body won't bring them back, and you may be better suited getting a fresh start with one of our 2006-2007 Duramax LBZ Complete Transmissions. A high-pressure valve body provides the holding power you need, but you need a converter that can handle that lock-up force, so pair your valve body with one of our 2006-2007 Duramax LBZ Torque Converters. Electronics hate heat, so protect your new valve body and solenoids by keeping fluid temperatures down with our 2006-2007 Duramax LBZ Transmission Coolers. When installing a new valve body, it's the perfect time to upgrade your fluid capacity or replace internal filters, so you can find deep pans and other essential components in our 2006-2007 Duramax LBZ Transmission Parts.