2015-2023 Chevy & GMC 1500 8L90E Transmissions & Transmission Parts

The 2015-2023 Silverado and Sierra 1500s can make impressive amounts of power and tackle tough applications, but the stock 8L90E transmission isn't exactly known for its reliability, even before you start stacking on mods. Tier One's built 8L90E transmissions for 2015-2023 GM 1500 trucks are specifically designed to handle more power and tougher applications than the factory 8L90E. Each Tier One built Silverado or Sierra transmission features stronger and more reliable internal components that allow them to hold more power and take on tough challenges both on and off the road. Tier One's upgraded 8L90E transmissions can handle heavy towing, tough off-roading, aggressive sled pulls, and even drag racing applications. Also check out our GM transmission rebuild kits or our GM truck performance parts and accessories! Contact Tier One with questions or for custom builds!