Chevy & GMC 1500 6L80E Transmissions & Transmission Parts

Your tough 2009-2021 Silverado or Sierra 1500 has the ability to make a whole bunch of power and torque, but the stock 6L80E transmission will probably not be happy about it. Tier One's built 6L80E transmissions can handle huge horsepower and torque from high-powered tuning, superchargers, turbos, or even nitrous so that you can push your Silverado or Sierra to the absolute limit both on and off-road. Our 6L80E transmissions are built from the ground up for tough applications and are right at home on aggressive street builds, rugged off-road rigs, purpose-built drag trucks, or wicked sled pullers. Tier One's built 6L80E transmissions for the GM 1500s are a great way to prep your truck for serious power! Also check out our 6L80E rebuild kits or our GM truck performance parts and accessories! Contact Tier One with questions or for custom builds!