2001-2004 Silverado & Sierra 2500 & 3500 Duramax LB7 Valve Bodies

Your Duramax LB7 may be able to make good power, tow heavy, and do tough truck stuff, but your stock transmission valve body may not be able to handle the strain and give you strange transmission function or not deliver enough fluid to critical parts of your truck's transmission. Tier One's performance valve bodies for 2001-2004 Silverado & Sierra 2500 & 3500 Duramax LB7 trucks feature both performance and reliability upgrades that will keep your Duramax's transmission working properly, no matter how much power your truck is making or how hard you're pushing it on or off-road. Each of these Duramax LB7 valve bodies uses a combination of performance springs, valves, and check balls to give your transmission higher line pressures and improved lubrication, as well as brand new OEM solenoids and switch manifolds to ensure excellent levels of reliability, even under extreme power levels or applications. Make sure you also check out our 2001-2004 Duramax LB7 Transmission Pans or our 2001-2004 Duramax LB7 Torque Converters!