🔥 Twisted Punisher™ 6L80E Performance Transmission — 650 HP

More Clutch. Billet Strength. Built the Twisted Torque™ Way.

The Twisted Punisher™ 6L80E is built for modified GM trucks, SUVs, muscle cars, and LS-powered vehicles making up to 650 engine HP.

Punisher starts with our standard factory corrections and the increased clutch capacity of Twisted Pro™, then steps up to a Sonnax One-Piece 300M Billet Intermediate Shaft & 4-5-6 Hub, higher-load pressure calibration, and a 2100–2500 RPM Super Duty Billet Cover Performance Torque Converter — INCLUDED.

Every transmission is torn down, cleaned, inspected, and rebuilt in-house with performance frictions, new steels, updated internal parts, and a NEW Pump & Bellhousing Assembly.

Built for higher-torque street applications that need stronger parts without turning the transmission into a race-only unit.

Performance Rating: Up to 650 Engine HP

⚡ TEHCM PROGRAMMING — INCLUDED

Every 6L80E includes a programmed TEHCM matched to your application. Factory replacements are programmed using your vehicle's VIN. Engine swaps and aftermarket applications may require a compatible donor VIN or base calibration. If you require a BLANK, unprogrammed TEHCM, just let us know when ordering. Installation Fast Learn or additional vehicle tuning may still be required.

⚙️ TWISTED PUNISHER™ 6L80E BUILD SPECIFICATIONS

✔ Complete Teardown, Cleaning & Inspection

Every transmission is stripped to the bare case. Clutch drums, shafts, hubs, planetary gearsets, bearings, and internal parts are cleaned and checked for cracks, damaged splines, worn bearing surfaces, and excessive wear.

✔ NEW Pump & Bellhousing Assembly

Every Punisher receives a NEW Pump & Bellhousing Assembly, not a reused or resurfaced original.

The new pump replaces the common wear points found in used pump assemblies and supplies fluid pressure for clutch engagement and internal lubrication.

✔ High-Energy Performance Clutches & NEW Steels

New high-energy performance frictions and matching steels are installed throughout the transmission.

Punisher includes our increased-capacity 3-5-Reverse and 4-5-6 clutch packs for additional holding surface under higher engine torque.

✔ Updated 1-2-3-4 Clutch Assembly

New performance frictions, matching steels, and updated apply piston.

The original piston is known to crack and cause loss of clutch pressure. We replace the early design with the updated piston.

The housing, snap-ring grooves, wave plate, and retainers are inspected. Clutch clearance is measured and set during assembly.

✔ High-Capacity 3-5-Reverse Clutch & Drum

HIGH-CAPACITY BUILD — Additional Friction & Steel Plate

The 3-5-Reverse clutch receives an increased-capacity clutch pack using an updated apply-ring arrangement.

Builder Spec: Sonnax #104548-01 high-capacity apply ring or approved equivalent clutch arrangement.

The additional friction and steel increase clutch holding surface over our Street build.

Drum welds, splines, retaining-ring grooves, and apply surfaces are checked. Damaged drums are replaced, and clutch clearance is measured before assembly.

✔ High-Capacity 4-5-6 Clutch Assembly

HIGH-CAPACITY BUILD — Additional Friction, Updated Apply Piston & Heavy-Duty Backing Plate

The 4-5-6 clutch receives our increased-capacity 36-tooth clutch arrangement.

Builder Spec: Sonnax #104960-10K high-capacity apply-piston kit or approved matching equivalent.

Uses an additional OE-style 36-tooth friction with the matching steels and apply parts. The high-capacity arrangement replaces the factory wave-plate setup.

Clutch clearance is measured and the backing plate checked for proper fit.

Standard Punisher uses the 36-tooth clutch arrangement matched to Sonnax #104680-36.

✔ PUNISHER UPGRADE — Sonnax One-Piece 300M Billet Intermediate Shaft & 4-5-6 Hub

STANDARD BUILD — SONNAX #104680-36 — INCLUDED

The factory 6L80 intermediate shaft and 4-5-6 hub are joined by a weld. Under higher torque, this joint is a known breaking point.

We replace the factory shaft and hub with the Sonnax 104680-36 one-piece 300M billet steel assembly.

This eliminates the factory welded connection, strengthens the hub and rear spline area, and provides improved oil flow to the 4-5-6 clutch.

Builder Spec: 104680-36 / 36-Tooth Hub / Matching 36-Tooth Frictions & Steels.

OPTIONAL EXTREME DUTY 45-TOOTH UPGRADE

When selected, replace the standard 36-tooth shaft and 4-5-6 clutch arrangement with:

• Sonnax #104680-45 — Extreme Duty 300M Billet Shaft & 45-Tooth Hub
• Sonnax #104960-20K — Matching High-Capacity 4-5-6 Apply-Piston Kit
• Matching 45-tooth performance frictions
• Matching wide performance steels
• Clutch clearance and apply setup matched to the 45-tooth arrangement
• 
  

The Extreme Duty package is intended for high-torque combinations, heavier performance vehicles, aggressive launches, and demanding power-adder applications.

✔ Updated 2-6 Clutch Assembly

The 2-6 clutch is rebuilt with new frictions, steels, and the updated friction design where applicable.

The apply piston, seals, and related parts are inspected. Clutch clearance is measured before assembly.

✔ Updated Low/Reverse Clutch & Sprag

The Low/Reverse clutch receives new frictions, steels, and seals.

Early 30-element low-sprag assemblies are updated to the later 38-element arrangement where applicable.

The sprag, races, and related parts are inspected before installation.

✔ Pump & Valve Body — Modified & Updated the Twisted Torque™ Way

The valve body is disassembled, cleaned, inspected, and rebuilt to correct worn valves and known factory pressure-control problems.

PUNISHER CALIBRATION: Clutch pressure and shift control are set up for the increased-capacity 3-5-Reverse and 4-5-6 clutch packs, higher engine load, and selected converter.

Proper clutch holding pressure under acceleration, with controlled shifts during normal driving.

✔ TransGo TCC & Clutch-Select Valve Corrections

TransGo updates address known torque converter clutch regulator and clutch-select valve problems.

These corrections help control converter lockup, reduce pressure loss, and prevent sticking valves, converter cycling, and inconsistent clutch engagement.

✔ Pressure Regulator & Boost Valve Updates

The pressure regulator and boost-valve system is checked and updated to correct pressure loss, excessive pressure spikes, and inconsistent clutch application.

Pressure-control parts and calibration are matched to the selected clutch arrangement.

✔ Complete Bushing Replacement

New replaceable bushings installed throughout the transmission.

Shaft support, bushing fit, and internal clearances are checked during assembly.

✔ New Gaskets, Seals & Sealing Rings

New internal gaskets, seals, and sealing rings installed throughout the transmission.

✔ New Transmission Filter

New transmission filter installed with every build.

✔ Internal Hard Parts Inspected & Measured

Input and output shafts, clutch drums, planetary gearsets, carriers, sun gears, hubs, bearings, and related parts are inspected for cracks, damaged splines, and excessive wear.

Parts that fail inspection are replaced.

✔ Final Assembly, Clutch Clearance & Air Checks

Clutch packs are measured and set to the required clearance for the selected friction and apply-piston arrangement.

Clutch assemblies are air-checked before final assembly.

✔ Application-Specific Assembly & Setup

Each transmission is built for the correct engine, drivetrain, and factory transmission configuration.

2WD, 4WD, AWD, car, truck, and specialty applications are verified before assembly.

💥 SUPER DUTY BILLET COVER PERFORMANCE TORQUE CONVERTER — INCLUDED

Every Twisted Punisher™ includes our Super Duty Billet Cover Performance Torque Converter with a 2100–2500 RPM stall range.

The billet cover helps resist flexing under load.

The higher stall range is intended for modified engines that need more launch RPM than a factory converter.

✔ Super Duty Billet Cover

✔ 2100–2500 RPM Performance Stall

✔ Matched to Engine & Vehicle Application

✔ INCLUDED With Every Punisher™ Build

Additional stall speeds are available in the product upgrade options.

Actual stall speed varies with engine torque, vehicle weight, and converter setup.

🔥 BUILT FOR

• Modified 5.3L, 6.0L, and 6.2L GM V8 engines
• Performance trucks, SUVs, and muscle cars
• Camshaft, intake, exhaust, and tuned LS combinations
• Select turbocharged, supercharged, and nitrous applications
• Street-driven LS swaps, hot rods, and restomods
• Higher-torque applications requiring billet shaft strength
• Performance street driving and occasional track use

Performance Rating: Up to 650 Engine HP

Engine torque, vehicle weight, tire size, gearing, tuning, traction, and intended use must be considered before selecting the correct build.

🔥 HEAVY-DUTY & HIGH-LOAD APPLICATIONS

Running a heavy truck, oversized tires, high boost, sticky tires, or repeated hard launches?

Our standard Punisher includes the Sonnax 104680-36 one-piece 300M billet shaft and high-capacity 36-tooth 4-5-6 clutch.

For more demanding combinations, we offer the Sonnax 104680-45 Extreme Duty 45-Tooth Billet Shaft & Clutch Package.

This upgrade changes the complete 4-5-6 clutch setup to a 45-tooth hub, wider frictions and steels, and matching high-capacity apply parts.

Heavy vehicles and repeated hard launches may also require stronger output or planetary parts, additional cooling, or a different converter stall.

Tell us how the vehicle is built and driven before ordering.

🚗 GM 6L80E VEHICLE APPLICATIONS

The Twisted Punisher™ 6L80E is built for select Chevrolet, GMC, Cadillac, Pontiac, and Hummer vehicles originally equipped with the GM 6L80 / 6L80E six-speed automatic transmission (RPO MYC).

CHEVROLET

• 2009–2021 Silverado 1500 — Select 4.3L, 5.3L, and 6.2L applications
• 2009–2020 Tahoe — Select 5.3L V8 applications
• 2009–2020 Suburban / Suburban 1500 — Select 5.3L V8 applications
• 2009–2013 Avalanche — Select 5.3L applications
• 2010–2015 Camaro SS — 6.2L V8 automatic
• 2014–2017 Chevrolet SS Sedan — 6.2L V8 automatic
• 2011–2017 Caprice PPV — Select V8 automatic applications

GMC

• 2009–2021 Sierra 1500 — Select 4.3L, 5.3L, and 6.2L applications
• 2009–2020 Yukon — Select 5.3L V8 applications
• 2009–2020 Yukon XL 1500 — Select 5.3L V8 applications
• 2007–2014 Yukon Denali — 6.2L V8
• 2007–2014 Yukon XL Denali — 6.2L V8

CADILLAC

• 2007–2014 Escalade — 6.2L V8
• 2007–2014 Escalade ESV — 6.2L V8
• 2007–2013 Escalade EXT — 6.2L V8
• Early 2015 Escalade / ESV — Factory 6L80 (RPO MYC) only

PONTIAC

• 2008–2009 G8 GT — 6.0L V8 automatic
• 2009 G8 GXP — 6.2L V8 automatic

HUMMER

• 2008–2009 Hummer H2 — 6.2L V8
• 2008–2009 Hummer H2 SUT — 6.2L V8

SPECIALTY 6L80 APPLICATIONS

Select Corvette, Cadillac XLR/XLR-V, and Cadillac STS-V vehicles were factory equipped with the 6L80, but these applications require separate fitment and performance-rating verification. Contact us before ordering.

ENGINE SWAPS & CUSTOM APPLICATIONS

We also build 6L80E transmissions for select LS swaps, hot rods, restomods, and custom vehicles.

Contact us with your engine, transmission controller, drivetrain configuration, and intended use before ordering.

IMPORTANT FITMENT INFORMATION

This listing is for the GM 6L80 / 6L80E (RPO MYC) ONLY. It is NOT a direct replacement for the 6L90E (RPO MYD).

Model years are general application ranges. Not every vehicle or trim within those years was equipped with a 6L80.

VIN and factory transmission identification are required before ordering.

🔥 NEED MORE THAN PUNISHER?

Twisted Punisher™ is rated for performance street applications up to 650 engine HP.

For higher horsepower, aggressive boost, repeated drag launches, or serious racing, check out our Twisted Executioner™ 6L80E Performance Transmission.

Tell us the vehicle. Tell us the motor. Tell us the modifications. Tell us how you're actually going to drive it.

We'll help match the right transmission to your build.

📞 833-858-9612

Twisted Torque™ — Built for the Application. Not the Catalog.