2009-2013 Silverado & Sierra 1500 6.2L Complete Transmissions

The stock 6L80 or 4L60 transmissions on your 2009-2013 Silverado or Sierra 1500 6.2L aren't known to be the most reliable things in the world, even at stock power levels and normal street driving, and they can definitely struggle when you add a bunch of power to your truck, tow extremely heavy, or rip around off-road on big tires. The good news is that we here at Tier One have a lineup of 2009-2013 Silverado & Sierra 1500 6.2L built transmissions that can handle practically anything you throw at them. Each of these built 6L80 transmissions and built 4L60E transmissions come jam-packed with reliability improvements that fix common 6L80 and 4L60E transmission problems, as well as a bunch of power-holding upgrades that let you add extra horsepower and torque to your Silverado or Sierra 6.2L build without your transmission letting you down. Make sure to also check out our 2009-2013 Silverado & Sierra 1500 6.2L Transmission Rebuild Kits or 2009-2013 Silverado & Sierra 1500 6.2L Transmission Coolers!