6L80 / 6L90
Part #
Reference #
Repair kits
Qty
OH 6L80E, 6L90E w/pistons 06-up Transtec
- Part #
- 2732
- Reference #
- 45002CWP
- Extra information
OH 6L90E w/o pistons Transtec
- Part #
- 2530
- Reference #
- 45002DW
- Extra information
- Transtec
Frictionpack 6L80, 6L90 Blue High Perfor
- Part #
- RCPBP-51
- Reference #
- 45119DHP
- Extra information
ZIP kit 6L45,6L80,6L90
- Part #
- 6L45-6L90-ZIP
- Reference #
- 45165
- Extra information
ZIP kit 6L45,6L80,6L90
- Pressure Regulator Valve Kit
- Boost Valve Kit
- Checkballs (8) .250" dia.
- Clutch Select Valve Spring Kit
- Compensater Feed Regulator Valve Kit
- TCC Regulator Valve, Spring, Shuttle Valve & End Plug
- O-Ringed End Plug Kit
- Actuator Feed Limit Valve, Sleeve & Spring
- Center Support Seal Kit
- Vacuum Test Nut
- No reaming required
- Installs quickly with no special tools required
- Uniquely designed parts address root causes of valve body complaints by sealing critical pressure circuits
- Detailed technical booklet included with in-depth rebuild and inspection tips for comprehensive valve body repair
In addition to general rebuilding tips and technical information, the technical booklet included in this kit contains vacuum testing and additional repair options for higher mileage units, or for repairing specific complaints which are beyond the scope of this kit.
Symptoms: - Burnt brake clutches
- Burnt clutches
- Delayed engagement
- Inadequate lubrication
- Low pressure
- Slips & flares
- Soft shifts
- TCC apply & release concerns
- TCC codes
Cause:
Loss of oil pressure due to worn components in critical oil circuits.
Correction:
Zip Kit seals critical pressure losses.
Clutch select/TCC valvekit 6L45, 6L80
- Part #
- 6L8-CS-TCC
- Reference #
- 45165A
- Extra information
Fits General Motors 6L45-6L90 series transmissions 2007-2014
Includes (2) New Steel Clutch Select Valves and new TCC Regulator valve
Corrects/Prevents/Reduces
Shift Solenoid Performance Codes or false PO751 due to sticking or dragging Clutch Select Valves.
Low Speed TCC “Chuggle” or Cycling during cylinder deactivation
Shiftkit 6L45, 6L80, 6L90 2006-2016
- Part #
- SK6L80
- Reference #
- 45165A
- Extra information
Fits General Motors 6L45-6L90 series transmissions 2007-2014
Includes High Temp HD Clutch rings; Drop in Pressure Regulator valve; EPC relief assembly with new Boost valve; Drop in Solenoid Regulator valve assembly and (5) Pressure Switch repair elements.
Fixes Extreme Pressure Damage Due to Worn Pressure Regulator Valve Bore, Restores proper Pressure Regulator and Solenoid Regulator valve function. Convenient drop in valves, No special tooling or machining necessary! Repairs included for blown pressure switches! Has EPC relief assembly to protect against excessively high pressure! Improves and restores correct drivability with added durability.
Part #
Reference #
Filters
Qty
Filter 6L80E Deep Pan
- Part #
- 34661P
- Reference #
- 45010C
- Extra information
- 24236931, 24236933, 24238229 Avalanche 104010A
Filter 6L80E
- Part #
- 34662P
- Reference #
- 45010CA
- Extra information
- 24235900, 24236932, 24251054, 24252158
Part #
Reference #
Valvebodies
Qty
VB 6L80E 10-up Rebuild
- Part #
- GM6L80L
- Reference #
- Core charge
- €180.00
- Extra information
Part #
Reference #
Transmission Fluid
Qty
Transmission Fluid GM 1 Liter
- Part #
- TG0002
- Reference #
- TG0002
- Extra information
Performance
DEXRON VI
DEXRON III
DEXRON IIE
Toyota WS
Mercon LV
Mercon SP
Part #
Reference #
Valvebody Components / Transmission Specialties
Qty
Press.reg. valve 6L45, 6L80, 6L90 OS
- Part #
- 104520-07K
- Reference #
- Extra information
Press.reg. valve 6L45, 6L80, 6L90 OS
- Pressure Regulator Valve
- Matching Outer Spring
- Boost Valve
- Boost Sleeve
- Drill Bit
- Checkballs (2) 1 Extra
- Oversized pressure regulator valve and matched spring restore OE function
- Annular grooves help center valves in bore to reduce future side-load wear
- Hardcoat anodized aluminum valves combat premature wear.
Symptoms: - Burnt clutches
- Clutch slippage
- Converter concerns
- Harsh shifts
- High line pressure
- Low cooler flow
- Low line pressure
- Low line rise in Reverse
- No cooler flow
- Overheated transmission
Cause:
Continuous oscillation of pressure regulator valve results in excess bore wear, causing erratic line pressure and/or restricting cooler/lube flow. Wear at the boost sleeve induces Reverse issues.
Correction:
Recover hydraulic control and renew line pressure performance by reconditioning the bore and installing Sonnax oversized pressure regulator and boost valve kit.
Required tool:F-104520-TL7CNOTE: Pump must be removed to install this kit. Use of the VB-06 is required with the VB-FIX reaming fixture for this installation unless the stator support shaft is removed from the pump body.
Converter Feed Limit Valve 6L80E
- Part #
- 104520-11
- Reference #
- Extra information
Oversized Converter Feed Limit Valve
Part No. 104520-11Tooling:
GM 6L45, 6L50, 6L80, 6L90 units may have TCC apply and release problems. Bore wear or a stuck converter feed limit valve can result in converter overheat, incorrect TCC apply or release, inadequate lube and cooling, and converter over-pressurization. Reaming the bore and installing the Sonnax oversized converter feed limit valve 104520-11 will restore proper valve function, resulting in proper TCC apply and release, regaining control of lube and cooling.
- Valve is hardcoat anodized to reduce wear
- Annular groove helps center the valve in bore
Boostvalve 6L80E, 6L45E
- Part #
- 104520-12K
- Reference #
- Extra information
- ehicles with listed GM transmissions may exhibit insufficient line rise in drive ranges, soft shifts and/or burnt clutches. These problems may be caused by continuous oscillation of the boost valve within the boost sleeve, creating excessive wear and a path for EPC fluid pressure to leak to exhaust. Sonnax boost valve kit 104520-12K has upgraded materials and minimal clearances to prevent wear and restore proper hydraulic control. The sleeve also has a slightly larger EPC feed orifice to provide quicker throttle response. A new pressure regulator valve outer spring is also included to replace weakened original springs and provides a modest 5 psi increase across the pressure curve.
Pressure reg.valv 6L80,6L90,6L45 Drop-in
- Part #
- 104520-14K
- Reference #
- Extra information
Press.reg. valve 6L45, 6L80, 6L90 OS
- Valve
- Drill Bit
- Checkballs (2) 1 Extra
- Hardcoat anodized aluminum valve combats premature wear
- Lengthened critical spools operate in non-worn portion of bore for added stability and wear prevention.
- Annular grooves help center valve in bore to reduce future side-load wear
- No reaming or special tools required
Symptoms: - Burnt clutches
- Clutch slippage
- Converter concerns
- Harsh shifts
- High line pressure
- Low cooler flow
- Low line pressure
- No cooler flow
- Overheated transmission
- Soft shifts
Cause:
Continuous oscillation of pressure regulator valve results in excess bore wear, causing erratic line pressure and/or restricting cooler/lube flow.
Correction:
Recover hydraulic control and renew line pressue performance by installing Sonnax pressure regulator valve kit.
NOTE: Pump must be removed to install kit.
Compens.reg.valve 6L45,6L80,6L90,6T40
- Part #
- 104740-09K
- Reference #
- Extra information
Compensator regulator valve 6L45,6L80,6L90,6T40
- Valve
- Sleeve
- Spring
- Retaining Clip
- Hardcoat anodized aluminum valve combats premature wear
- Highly wear-resistant aluminum sleeve provides additional valve support
- Includes calibrated spring for restoring OE compensator pressure
Symptoms: - Bind-up
- Bump shifts
- Burnt clutches
- CPC codes
- Downshift clunk
- Flare shifts
- Harsh shifts
- Overheated fluid
Cause:
Bore wear at compensator feed regulator valve allows critical pressure loss that prevents proper clutch timing and control.
Correction:
Recover hydraulic control and renew shift performance by installing Sonnax compensator feed regulator valve kit.
AFL-valve Oversize 6L80E
- Part #
- 104740-12
- Reference #
- Extra information
Symptoms:
- Solenoid performance codes
- Clutch failure
- Wrong gear starts
- Harsh shifts
- Soft shifts
Cause:
Actuator feed limit bore wear causes erratic supply pressure to control solenoids.Correction:
Recover hydraulic control and renew shift performance by reconditioning the bore and installing Sonnax oversized AFL valve.Oversized AFL Valve
Tooling:
Part No. 104740-12Required tool kit can also be used to install oversized AFL valve kit 124740-01 in GM 6T70/75 (Gen. 1) and Ford 6F50/55 valve bodies
TCC reg.spring 6L45,6L50,6L80E,6L90 (5)
- Part #
- 104740-45K
- Reference #
- Extra information
Rebuild Masterpack 6T70, 6L80 TEHCM
- Part #
- 124740-28K
- Reference #
- Extra information
Rebuild Masterpack 6T70, 6L80 TEHCM
- Laminate Discs (40)
- Seals (40)
- Seal Installer
- Piston
- Seal Plunger
- Laminate Installation Tool
Listed GM 6-speed transmissions often set various trouble codes related to failures of fluid pressure switches that are internal to the transmission electro-hydraulic control module (TEHCM). These codes may be accompanied by TCC apply problems or shift irregularities such as slipping, flares, harsh application, and bind-ups. As time goes by, the laminated portions of the pressure switches can breach, preventing normal switch operation. If more than one switch breaks down, failsafe mode can be triggered. Since switches cannot be obtained through OE channels, replacement of the TEHCM was the only previous remedy available.
It is no longer necessary to replace the expensive TEHCM assembly to rectify this concern. Installing Sonnax pressure switch rebuild master pack 124740-28K restores normal switch operation, eliminating codes and providing renewed shift performance in all ranges.
- Allows salvage of expensive TEHCM
- Installation tools included in kit
Symptoms: - Erratic TCC apply
- Failsafe mode
- Harsh shifts
- Pressure control out-of-range codes
- Pressure switch codes
- Shift codes
- Slips, flares & bind-ups
Cause:
OE pressure switch laminate disc breached, preventing proper switch operation.
Correction:
Salvage the transmission control unit and restore normal shift operation by installing a set of four seals and laminate discs from the Sonnax pressure switch rebuild master pack.
NOTE: Before installing kit, test switches to verify proper electrical operation. Kit repairs laminate disc and seal failures only; it will not rectify electrical breakdown. See instructions for details.
Cooler bypass 6L80E 2014-up,8L90 2016-up
- Part #
- STL010
- Reference #
- Extra information
Superior STL010
Fits all 2014-up 6L80/90E AND NOW FITS 8L80/90E 2016-up
Superior’s Cooler Flow bypass valve kit allows full time cooler flow and lube to parts “so you’re not hot under the collar”…you’re SURE~COOL®
• Built in safety bypass • Immediate cooler fill.
• Immediate accurate fluid level check without warm-up cycle
• Reduced average operating temperatures by as much as 20%
• Reduced risk of overheat while under load, Increased ATF life.
Line Press. Booster 6L80E
- Part #
- 6L80-LB1
- Reference #
- 74507
- Extra information
Line Press. Booster 6L80E
- Large Ratio Boost Assembly
- Pressure Regulator Spring
- Kit fits all 6L45–6L90 applications
- Achieve shorter shifts and increased torque capacity without creating low-speed harshness
- Improved band and clutch holding capacity for increased durability
- Progressive pressure increase as driving conditions become more demanding
- All the benefits of increased line pressure without overloading the pump at idle
- Simple and affordable drop-in solution with no special tools or reaming required
End plug kit 6L80E, 6L40E
- Part #
- 104740-23K
- Reference #
- 74741
- Extra information
End plug kit 6L80E, 6L40E
- End Plugs (6)
- O-Rings (9)
Contains 6 Plugs & 9 O-rings
- No special tools required
- Minimal end-plug-to-bore clearance with added O-ring for positive seal
Symptoms: - Burnt clutches
- Shift concerns
Cause:
These complaints can be caused by wear of the end plugs allowing valuable actuator/solenoid feed pressure to leak at the various regulator valves and Reverse and latch pressure to leak at the clutch select valves.
Correction:
This Sonnax O-ringed end plug kit restores correct circuit pressures. The O-ring provides additional sealing to reduce hydraulic losses at critical circuits.
Part #
Reference #
Frictions
Qty
Piston 4-5-6 Clutch apply kit 6L80E
- Part #
- 104960-01K
- Reference #
- 45464
- Extra information
4-5-6 Clutch Apply Piston Kit
Part No. 104960-01K
GM 6L80 and 6L90 transmissions often suffer failure of the 4-5-6 clutch assembly due to OE design shortcomings. Insufficient clutch piston-to-plate apply surface area causes clutch plate failure, especially when apply pressures exceed OE specifications. The other problem is flexing and bowing of the backing plate (coning), which is a primary source of clutch failure.
The heavy-duty Sonnax 4-5-6 clutch apply piston kit 104960-01K addresses these weak areas in two ways:
- A modified OE clutch apply piston and piston dam are used in conjunction with a specially-designed Sonnax piston apply ring.
- A more rigid backing plate.
The Sonnax apply ring increases surface area between the apply piston and OE waved clutch plate, resulting in more even distribution of apply force to clutch plates. The Sonnax backing plate minimizes flexing/bowing when clutch is applied, drastically reducing the likelihood of clutch plate distortion.
- Solid backing plate design outperforms OE and aftermarket plates
- Increased apply ring surface area strengthens and reinforces assembly
- Apply Piston
- Apply Ring
- Piston Dam
- Backing Plate
Part #
Reference #
Steels
Qty
Part #
Reference #
Pressure Plates
Qty
Press.plate 6L80 4-5-6-clutch
- Part #
- 104140A
- Reference #
- 45148
- Extra information
- 4-5-6 Clutch Backing Plate
Part No. 104140A-01
OE Part No. GM 24240654GM 6L80 and 6L90 transmissions often suffer failure of the 4-5-6 clutch assembly due to flexing and bowing of the backing plate (coning), especially when clutch apply pressures exceed OE specification.
The heavy-duty Sonnax 4-5-6 clutch backing plate 104140A-01 is designed to minimize flexing/bowing when the clutch is applied, drastically reducing the likelihood of clutch plate distortion.
Stiffer backing plate design outperforms OE and aftermarket plates
Part #
Reference #
Bushings
Qty
Bushingkit 6L80E / 6L90E (11 pc) Omega
- Part #
- 133500
- Reference #
- 45030C
- Extra information
- Omega full bronze
Bushing pump 6L80, 6L90, 6L45 PTFE
- Part #
- 104034A
- Reference #
- 45034B
- Extra information
Pump Bushing
Part No. 104034AThe OE pump bushing in GM 6L50, 6L80 and 6L90 units utilizes a PTFE-impregnated load bearing surface to support large forces and survive dry-start conditions. Replacement bushings are unavailable from GM, so when this bushing eventually wears out, builders have the choice of buying an entire bell housing to get the bushing or settling for aftermarket bushings that can't stand up in this environment. Unfortunately, it is also very common for these units to suffer internal torque converter failures which create debris that ruins this bushing.
Sonnax PTFE-impregnated pump bushing 104034A is a direct replacement OE-style bushing which should be used in these 6L units that contain a worn bushing, or one that has been damaged because of an internal converter failure.
- Sonnax bushing is impregnated with highly wear-resistant PTFE — not simply adhesive coated — providing unmatched durability
- Excellent fatigue and seizure resistance
- Precision fit and function assure long bushing life
- Bushing Style: Precision
- Material: PTFE-Impregnated Bimetal
- Housing Bore: 1.994"
- Shaft Dia.: 1.834"
- Width: 0.782"
Part #
Reference #
Seals
Qty
Seal Filler tube 6L80 (green)
- Part #
- 33802
- Reference #
- Extra information
- OEM 15796802
Part #
Reference #
Gaskets
Qty
Part #
Reference #
Washers & Bearings
Qty
Bearingkit 6L80, 6L90
- Part #
- SBK-G80
- Reference #
- Extra information
- Bearing Kit Contents Sun Gear Input 4-5-6 Hub 1-2-3-4 Hub 2-6/3-5-R Hub Output (Front) Output (Rear)
Part #
Reference #
Electrical Components
Qty
Part #
Reference #
Sprags & One way clutches
Qty
Part #
Reference #
Pistons
Qty
Piston 1-2-3-4 6L80E Alu (update) Sonnax
- Part #
- 104984-01
- Reference #
- 45962C
- Extra information
- 1-2-3-4 Piston Part No. 104984-01 OE Part No: 24238700 GM 6L80/6L90 1-2-3-4 pistons commonly crack due to cantilevered stress on the cast material. The OE part has been through several revisions in an attempt to correct this, but all OE versions are still chronically known to crack. Sonnax 1-2-3-4 piston 104984-01 is made from stronger, billet aluminum and has superior design refinements that add additional strength to prevent breakage and deliver maximum performance.
Part #
Reference #
Hard Parts
Qty
Bellhousing 6L80/90
- Part #
- 45750E
- Reference #
- 45750E
- Extra information
- 24248033 / 24248034 on housing OE# 24248031 Replaces Cast # 24236121, 24239892, 24248034, 24239952, Rotor Kit Not Included
Snapring 6L80E 1-2-3-4 cl 2006-up 0.3mm
- Part #
- 195251-125
- Reference #
- 45873C
- Extra information
- GM 6L80E, 6L90E 1-2-3-4 Clutch Snap Ring 2006-On (.125" Thickness) OEM # 24240200 Alto # 195251-125
Snapring 6L80E 4-5-6 cl 2006-up 2.5mm
- Part #
- 195250
- Reference #
- 45876C
- Extra information
- 4-5-6 Clutch Snap Ring (5.730" OD) 2006-On Thickness 2.5mm / .098" OEM#24233406
Snapring 6L80E 4-5-6 cl 2006-up 1.65mm
- Part #
- 195250-065
- Reference #
- 45876C
- Extra information
- 4-5-6 Clutch Snap Ring (5.730" OD) 2006-On Thickness 1.65mm / .065 OEM#24233407
Snapring 6L80E 4-5-6 cl 2006-up 2.07mm
- Part #
- 195250-081
- Reference #
- 45876C
- Extra information
- 4-5-6 Clutch Snap Ring (5.730" OD) 2006-On Thickness 2.07mm / .081 OEM#24233408
Diafragma 6L80 2-6
- Part #
- 195767A
- Reference #
- 45970
- Extra information
- 2-6 clutch (.062) 7.938" OD, 18 fingers OEM 24224725
Diafragma 6L80 4-5-6
- Part #
- 195767C
- Reference #
- 45974
- Extra information
- 4-5-6 clutch (.075) 4.710" OD, 10 fingers OEM 24224714
Diafragma 6L80 1-2-3-4
- Part #
- 195767B
- Reference #
- 45975
- Extra information
- 1-2-3-4 clutch (.061) 5.405" OD, 12 fingers OEM 24224707
Diafragma 6L80 3-5-R
- Part #
- 195767D
- Reference #
- 45975
- Extra information
- 3-5-R clutch (.054) 6.813" OD, 16 fingers OEM 24237308
Diafragma 6L80 Low-Reverse
- Part #
- 195767E
- Reference #
- 45977
- Extra information
- Low-Reverse clutch (.069) 5.335" OD, 12 fingers OEM 24224732
Part #
Reference #
Tools
Qty
Tool Press.reg. valve 6L45, 6L80, 6L90
- Part #
- F-104520-TL7
- Reference #
- Extra information
Tool Kit
- Reamer
- Reamer Jig
- Guide Pin
Tool Converter Feed Limit Valve 6L80
- Part #
- F-104520-TL11C
- Reference #
- Extra information
Tool Kit
- Reamer Jig
- Guide Pin
- Carbide Reamer
Tool AFL valve 6T70, 6F50 / 6L45,6L90
- Part #
- F-104740-TL12
- Reference #
- Extra information
Tool AFL valve 6T70, 6F50 / 6L45,6L90
- Reamer
- Reamer Jig
- Guide Pin
Tool Kit for 104740-12 and 124740-01
NOTE: Sonnax F-Tool kits designed to service a specific bore require the VB-FIX, a self-aligning valve body reaming fixture.
Tool Snapring Pliers 5L40E 6L80
- Part #
- T-2075
- Reference #
- Extra information
- HEAVY DUTY PLIERS USED TO REMOVE AND INSTALL THE LARGE INTERNAL RETAINING RING IN THE TRANSMISSION CASE THE HANDLES ARE 30 INCHES LONG TO PROVIDE THE LEVERAGE NEEDED TO COMPRESS THIS RETAINING RING FOR REMOVAL AND REINSTALLATION IN THE 5L40, 6L50, 6L80, AND THE 6L90 TRANSMISSION.
Part #
Reference #
Torque Converters
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