2006-2007 Silverado & Sierra 2500 & 3500 Duramax LBZ Transmission Kits

Whether your Duramax LBZ has seen some hard use over the years or if you've stacked on some extra horsepower and torque, your truck's factory transmission may be more than a little bit worse for wear. Tier One's selection of transmission rebuild kits for 2006-2007 Silverado & Sierra 2500 & 3500 Duramax LBZ trucks are the perfect way to give your transmission a refresh and win back clean shifting and reliable operation all in one place. These Duramax LBZ transmission rebuild kits come with new seals, clutches, gaskets, hardware, and all the other wearable components you need to replace your truck's worn-down transmission parts without a ton of hassles. Many of these Silverado & Sierra HD rebuild kits even come with upgraded and aftermarket components that allow your Duramax LBZ build to safely and reliably make more power without your transmission letting you down. Make sure you also check out our 2006-2007 Duramax LBZ Transmission Pans or our 2006-2007 Duramax LBZ Complete Transmissions!