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4L80E Shown with COMPUSHIFT

The 4L80E was introduced by GM in 1991 to replace the rugged, but aging 3 speed TH-400. The 4L80E was the first fully computer managed transmission in the GM fleet and has proven to be a strong and reliable transmission in 3/4, 1 ton, and Motor Home Chassis, providing overdrive towing capability and precision electronic shift performance. Naturally Hot-rodders were drawn to this trans as a means to finally get a reliable overdrive to go behind high output big blocks and tow rigs. Unfortunately, it took the after market a few years to come up with a simple and easy to install stand alone computer system that could be fitted to older, non computer controlled vehicles. Well the wait is over and now anyone wishing to harness the full power of their engine up to 1,000 horsepower, can do so with one of our 4L80E transmission and computer packages.

Each trans and converter are built to order to insure the correct stall speed and performance modification per application. The trans is then dyno tested and the computer calibrated for shift scheduling and firmness as well as converter clutch application. The end user has only to install the trans, make 4 or 5 simple connections, and go have fun! If you’re making to much power for a 700R4, and need an overdrive, this is the best choice you can make for performance and drivability for your car or truck.

Phoenix Transmission Products has been providing quality performance built automatics since 1983. Its is our mission to provide the best in service and products for all your transmission needs. We are a company owned and operated by car enthusiasts who understand the value of your project and will work with you to achieve your performance objectives.

All transmissions are custom built to order to provide a trans and converter matched to your engine, vehicle, and driving requirements. Unlike many of our competitors, all of our torque converters are built in house to insure the greatest compatibility and highest quality possible. All of our performance automatics are thoroughly Dyno tested in our 15,000 square foot manufacturing facility in Weatherford, Texas, just 30 minutes west of the Dallas/Fort Worth Metroplex. You’re welcome to come by and visit us if you’re in the area, we’re always glad to see you! Call or e-mail us with any questions you may have about our products and services. We’re here to help!

For more information or to place an order, please contact us via E-mail sales@phoenixtrans.com or by phone at 817-599-7680 , Sales 1-866-SHIFTUP

Visit our website at www.phoenixtrans.com

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No Portion May Be Used Without Our Written Permission
Contact Us Toll Free (877) 700-2468 (US) or (208) 562-0470 (Outside US)
230 S. Cole Rd, Boise, ID 83709