🔥 Twisted Pro™ 4L60E to 4L80E Conversion Package

💪 Rated for Up to 650 HP

Heavy-Duty Street • Towing • Work Trucks • Off-Road • High-Torque Applications

Upgrade your factory 4L60E to a professionally built Twisted Pro™ 4L80E.

Designed for GM trucks and SUVs that demand more than our Street™ package, the Pro delivers increased clutch capacity, higher holding power, improved hydraulic control, and the durability needed for towing, larger tires, and higher horsepower applications.

Whether you're building a tow rig, work truck, weekend toy, or LS-powered street truck, the Twisted Pro™ is built to handle the abuse.

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🔥 PERFECT FOR

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✔ Chevrolet Silverado 1500

✔ GMC Sierra 1500

✔ Chevrolet Tahoe

✔ GMC Yukon

✔ Chevrolet Suburban

✔ Chevrolet Avalanche

✔ Trailblazer SS

✔ LS Engine Swaps

✔ Street Trucks

✔ Tow Vehicles

✔ Off-Road Builds

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⚙️ WHY CHOOSE THE TWISTED PRO™

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✔ Rated for Up to 650 HP

✔ Increased Direct Clutch Capacity

✔ Higher Line Pressure Calibration

✔ Performance Valve Body Calibration

✔ Twisted Torque™ Performance Clutches & Steels

✔ Heavy-Duty Intermediate Sprag Upgrade

✔ HD Intermediate Band

✔ Billet Apply Piston Lockup Converter Included

✔ Available for 2WD & 4WD Applications

✔ Built in the USA

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🔧 TWISTED PRO™ 4L80E BUILD

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Every conversion package includes our Twisted Pro™ 4L80E featuring:

✔ Twisted Torque™ Performance Clutches & Steels

✔ Complete Overhaul with Premium Seals & Gaskets

✔ Increased Direct Clutch Capacity

✔ Complete Bushing Replacement

✔ Sonnax® No-Walk Rear Case Bushing

✔ New Lip Seals

✔ New Metal-Clad Seals

✔ New Teflon Sealing Rings

✔ New Bearings & Thrust Washers

✔ New Filter

✔ New Pump Bushing

✔ New Front Pump Seal

✔ New Extension Housing Seal

✔ Heavy-Duty Intermediate Sprag Upgrade

✔ HD Intermediate Band

✔ Pump Reconditioned & Inspected

✔ Valve Body Reworked In-House

✔ Higher Line Pressure Calibration

✔ Pro-Tuned Hydraulic Calibration

✔ Hard Parts Inspected & Replaced as Needed

✔ New Stock Depth Powder-Coated Pan with Drain Plug

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⚡ NEW ELECTRONICS PACKAGE

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✔ New EPC Solenoid

✔ New Shift Solenoid A

✔ New Shift Solenoid B

✔ New Internal Wiring Harness

✔ New MLPS (Manual Lever Position Sensor)

✔ New Input Speed Sensor (where applicable)

✔ New Output Speed Sensor

✔ Updated Pressure Control Parts

Electronics are matched to your specific year and application.

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🚙 PERFORMANCE LOCKUP TORQUE CONVERTER INCLUDED

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Every package includes a heavy-duty performance lockup converter featuring:

✔ Billet Apply Piston

✔ Heavy-Duty Lockup Clutch

✔ Furnace-Brazed Fins

✔ Increased Lockup Holding Capacity

✔ Typical 2,100-2,400 RPM Stall Speed

Higher stall speed options are available for camshaft, turbocharged, supercharged, nitrous, and LS swap applications.

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🔄 4L60E TO 4L80E CONVERSION PACKAGE INCLUDES

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✔ 4L60E to 4L80E Wiring Adapter Harness

✔ New MLPS (Manual Lever Position Sensor)

✔ New Input & Output Speed Sensors (where applicable)

✔ OEM-Style Dipstick & Tube

✔ Torque Converter Bolts

✔ Twisted Torque™ 1402 External Transmission Cooler

✔ 12 Quarts of Transmission Fluid

✔ Free Twisted Torque™ T-Shirt

✔ Free Technical Support

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⚙️ SELECT YOUR DRIVETRAIN

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2WD Applications (Standard)

Every Twisted Pro™ Conversion Package is built as a 2WD transmission and includes:

✔ 32-Spline Slip Yoke Installed

🚨 4WD APPLICATIONS – CUSTOM UPGRADE REQUIRED

If your vehicle is 4WD, you MUST select the Custom 4WD Output Shaft Conversion option when placing your order.

This custom upgrade includes:

✔ Removal of the Standard 2WD Output Shaft

✔ Installation of a Custom Aftermarket 4WD Output Shaft

✔ 4WD Adapter Housing Installed

Your transmission is built specifically for your transfer case before it ships.

⚠️ IMPORTANT: The base transmission is configured for 2WD applications. If your vehicle is 4WD and the Custom 4WD Output Shaft Conversion is not selected, your transmission will be built as a 2WD unit.

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🌡️ KEEP IT RUNNING COOL

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Every conversion package includes our Twisted Torque™ 1402 External Transmission Cooler to help maintain lower transmission temperatures during towing, hauling, and high-load conditions.

Lower operating temperatures help extend transmission life and improve long-term reliability.

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⚙️ AVAILABLE UPGRADES

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✔ Deep Aluminum Transmission Pan

✔ Performance Stall Converter

✔ Full Synthetic ATF Upgrade

✔ Additional Performance Upgrades Available

Every Twisted Pro™ 4L80E is built specifically for your year, engine, drivetrain, horsepower level, and intended use. With increased clutch capacity, upgraded hydraulics, and a billet apply piston converter, the Twisted Pro™ is the next step up for customers who demand more from their transmission without stepping into a full competition build.