Built 6L80/6L90 Transmissions and Installations in Long Beach CA
The 6L80 and 6L90 are found in a huge range of GM trucks and SUVs. These transmissions come in Silverado 1500, Sierra 1500, Tahoe, Yukon, Suburban, Escalade, Camaro, and many other GM vehicles from 2007 to present. If you drive a GM half ton or full size SUV, there is a good chance you have one of these 6 speeds.
If your 6L80 or 6L90 is slipping, shuddering, banging into gear, or throwing torque converter codes, you are not alone. These transmissions are known for early failures, weak converters, worn clutches, and overheated fluid. If you want your truck or SUV to drive the way it should, you need a transmission that is built to handle real use.
At Inglewood Transmission, we build, rebuild, and install 6L80 and 6L90 transmissions in house using upgraded parts, improved cooling, and proven methods that solve the issues these units are known for. Our technicians work on GM 6 speeds all week and know exactly how to make them reliable again.
Why Choose Inglewood Transmission
More than 50 years building transmissions
Since 1964 we have been keeping trucks and SUVs on the road. We know the trouble spots inside the 6L80 and 6L90 and what upgrades actually make a difference.
Technicians who specialize in GM 6 speeds
Our Long Beach team has rebuilt hundreds of 6L80 and 6L90 units for Silverado, Sierra, Tahoe, Yukon, Suburban, Escalade, Camaro, and other GM models. We use upgraded clutches, improved valve body components, and better converter designs that increase durability and eliminate common failures.
Built for your vehicle and the way you drive
Every build is customized to the truck or SUV it goes into. Whether you tow, daily drive, or run a mild tune, we match the converter, clutch setup, and shift calibration to create a transmission that drives clean and holds up over time.
Fast turnaround and strong warranties
We know downtime is expensive. Many installations are completed the same day and every 6L80 and 6L90 transmission comes with a warranty written specifically for these units.
6L80 / 6L90 Transmission Services in Long Beach
6L80 / 6L90 Installation
Proper installation makes all the difference in how these transmissions perform. We handle removal, install, fluid, programming, and final checks so your truck leaves shifting the way it should.
6L80 / 6L90 Rebuilds
We tear each transmission down completely, replace worn components, and install upgraded internals that address factory weaknesses. The result is a cooler running and longer lasting 6 speed that shifts smooth and holds power.
6L80 / 6L90 Replacements
If replacement makes more sense, we install one of our in house built units that has already been dyno verified. You get a proven transmission with upgraded parts and the reliability you expect.
Call for a Quote
If you are searching for 6L80 transmission near me or 6L90 rebuild cost, or you want to know if your current transmission can be saved, we can help. Call and speak directly with a builder who can walk you through your options.
📞 Call 714-870-7300 to talk with our team.
Or fill out our contact form and we will get back to you right away.