4L80E

About 4L80E Transmissions

The GM 4L80E transmission is a heavy-duty, four-speed overdrive transmission built to handle high horsepower and torque. It's a top choice for demanding applications like towing, racing, and off-road builds.

It is also known for its strength and versatility. The 4L80E works well with a wide range of engine combinations and power levels.

Key Specifications

Benefits of 4L80E Transmission

Heavy-Duty Strength: Successor to legendary TH400 with cast-aluminum case and beefy internals.

Performance-Friendly: Custom-built versions with upgraded clutches, hardened input shafts, and improved valve bodies.

Electronic Control: Fine-tune shift timing, line pressure, and torque converter lockup with the TCU controller.

Swap-Ready: Aftermarket adapter kits, standalone controllers, custom wiring for LS, big-block, small-block, non-GM engines.

Vehicles with 4L80E Transmission

Trucks & SUVs

Chevrolet Silverado, Suburban, GMC Sierra, Yukon XL, Hummer H1

Commercial Vehicles

Box trucks, Chevrolet Express, GMC Savana, motorhomes, school buses, service fleets

Luxury/Exotic (Custom Builds)

Bentley, Jaguar, Rolls-Royce, Aston Martin

Classic Car Swaps

Chevelle, Camaro, GTO with LS or big-block engines

Compatible Engines for GM 4L80E Transmission

LS-series

Gen I small-blocks

Big-block V8s

Gen V LT engines (with adapter kits)

Non-GM powerplants (with flexplate, converter, adapter kits)

Why Upgrade to Gearstar 4L80E Transmission

Built-to-Order by a single master technician

Provide Custom 4L80E transmissions as per your vehicle requirements

Tested Under Real-World Conditions for reliability, strength, and performance

Quality Craftsmanship with outstanding customer satisfaction

Ideal for high-horsepower builds, towing, and demanding setups

Get Your Custom 4L80E from Gearstar

If you're building a high-performance vehicle or upgrading for towing, racing, or off-road use, Gearstar will build a custom 4L80E transmission tailored to your exact needs.

Each transmission is precision-built, tested, and engineered for real-world performance, which gives you the strength, reliability, and control your build demands.