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Inner Stator Race GM-HR-18

  • 245mm LU (3T40, 3L30, TH200C, 4T60-E, 4L60 & E:S-10 only)
  • 6L80, 6L90 (300mm)
  • Converts GM 245mm LU (3T40, 3L30, TH200C, 4T60-E, 4L60 & E:S-10 only) converter cores to a 36-tooth spline for use in 6L80, 6L90 300mm applications

Sonnax special high performance inner stator race GM-HR-18 can be used to convert  GM 245mm LU (3T40, 3L30, TH200C, 4T60-E, 4L60 & E: S-10 only) applications t...Read More

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245mm LU (3T40, 3L30, TH200C, 4T60-E, 4L60 & E:S-10 only), 6L80, 6L90 (300mm) Inner Stator Race GM-HR-18

Clutch Plate FD-CP-15A

  • 6R60, 6R75W
  • Fits early- and late-style converters
This part has been discontinued. Click here to see the part instructions.

Bushing Kit 104030A-01K

  • 6L80
  • 6L90

OE bushings in GM 6L80 and 6L90 transmissions have a tendency to wear out prematurely due to sub-optimal material composition. This wear can lead to bushing failur...Read More

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6L80, 6L90 Bushing Kit 104030A-01K

Heavy Duty 4-5-6 Clutch Hub & Intermediate Shaft 104680-36

  • 6L80
  • Use with OE-style, 36-tooth frictions & OE steels.

An essential upgrade for any hard-working GM 6L80 transmission, Sonnax heavy duty 4-5-6 clutch hub and intermediate shaft 104680-36 guarantees maximum protection a...Read More

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6L80 Heavy Duty 4-5-6 Clutch Hub & Intermediate Shaft 104680-36

245mm Performance Converter Kit GM-RK-16

  • 6L80 (245mm), Single-Plate Performance Converter
  • 6L80, 6L90 (300mm)

The GM 6L80 transmission in '10-later Camaros and many GM trucks uses a 300mm converter. The large diameter and weight of this "JBMX" converter rob the drivetrain ...Read More

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6L80 (245mm), Single-Plate Performance Converter, 6L80, 6L90 (300mm) 245mm Performance Converter Kit GM-RK-16

Pump Rotor 104532

  • 6L45
  • 6L50
  • 6L80
  • 6L90
This part has been discontinued.

Stator Support Bushing Kit 104036AK

  • 6L80
  • 6L90

GM 6L80 and 6L90 transmissions have aluminum bushings installed at the front and rear of the stator shaft. While aluminum bushings generally have good wear charact...Read More

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6L80, 6L90 Stator Support Bushing Kit 104036AK

Extreme Duty 4-5-6 Clutch Hub & Intermediate Shaft 104680-45

  • 6L80
  • Use with Powerglide-style, 45-tooth frictions, Sonnax steels & high capacity piston kit 104960-20K.

The ideal upgrade for performance vehicles with the GM 6L80 transmission, Sonnax extreme duty 4-5-6 clutch hub and intermediate shaft 104680-45 guarantees maximum ...Read More

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6L80 Extreme Duty 4-5-6 Clutch Hub & Intermediate Shaft 104680-45

Pump Vane 76742

  • 6L45
  • 6L50
  • 6L80
  • 6L90

Quality replacement Sonnax pump vanes 76742 available for rebuilding GM 6L45, 6L50, 6L80 and 6L90 pump rotors. Cost-effective alternative to replacing entire pump rotor assembly

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6L45, 6L50, 6L80, 6L90 Pump Vane 76742

Spring Retainer Plate GM-DA-18

  • 6L80, 6L90 (300mm)

The outermost spring retainer plate in GM 6L80, 6L90 (300mm) damper assemblies often cracks and fails. The OE material and stamping process create an inherent weak...Read More

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6L80, 6L90 (300mm) Spring Retainer Plate GM-DA-18

Clutch Select Valve Spring Kit 104740-02K

  • 6L45
  • 6L50
  • 6L80
  • 6L90
  • Fits mid '10–earlier. Compatible with all models except early, 1st design 6L80 plate 24246916.

Mid 2010-earlier GM 6L45/50/80/90 transmissions have a tendency to set a P0751 (shift solenoid 1 malfunction) code. One of the causes of this is the OE spring forc...Read More

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6L45, 6L50, 6L80, 6L90 Clutch Select Valve Spring Kit 104740-02K

Impeller Hub GM-90-72G

  • 6L80, 6L90 (300mm)
  • 6L90 (Captive Clutch)

Sonnax flanged impeller hub GM-90-72G fits GM 6L80 (late), 6L90, 300mm converters. The hub has a large, reinforced flange and a recessed pocket to contain associated thrust bearing GM-N-22.

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6L80, 6L90 (300mm), 6L90 (Captive Clutch) Impeller Hub GM-90-72G

Oversized Converter Feed Limit Valve 104520-11

  • 6L45
  • 6L50
  • 6L80
  • 6L90

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, incorrec...Read More

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6L45, 6L50, 6L80, 6L90 Oversized Converter Feed Limit Valve 104520-11

Inner Stator Race GM-HR-16

  • 6L80, 6L90 (300mm)
  • 6L90 (Captive Clutch)

Sonnax inner stator race GM-HR-16 is a direct replacement for damaged stator races in GM 6L80, 6L90 (300mm) converters. GM-HR-16 is made from through-hardened 5210...Read More

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6L80, 6L90 (300mm), 6L90 (Captive Clutch) Inner Stator Race GM-HR-16

Center Support Seal Kit 104740-14K

  • 6L45
  • 6L50
  • 6L80
  • 6L90

The rubber seals between the center support in the case and the machined surface of the valve body are prone to leakage over time. In GM 6L45, 6L50, 6L80, 6L90 tra...Read More

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6L45, 6L50, 6L80, 6L90 Center Support Seal Kit 104740-14K

JMBX Performance Converter Kit GM-RK-685

  • 6L80 (265mm), Multi-Plate Performance Converter
  • 6L80, 6L90 (300mm)
  • Street/Strip applications only.
This part has been discontinued. Click here to see the part instructions.

JMBX Performance Converter Kit GM-RK-685WC

  • 6L80 (265mm), Multi-Plate Performance Converter
  • 6L80, 6L90 (300mm)
  • Street/Strip applications only.

A performance torque converter is highly specialized based on the performance characteristics of the specific vehicle. Sonnax has several levels of kits to ensure ...Read More

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6L80 (265mm), Multi-Plate Performance Converter, 6L80, 6L90 (300mm) JMBX Performance Converter Kit GM-RK-685WC

Mechanical Diode® GM-MD-6-2

Sonnax mechanical diode GM-MD-6-2 for GM 6L80 and 6L90 converters offers much greater strength than existing roller clutches and “dog bone” style sprags. This diod...Read More

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6L80 (245mm), Single-Plate Performance Converter, 6L80 (265mm), Multi-Plate Performance Converter, 6L80, 6L90 (258mm), Multi-Plate Performance Converter , 6L80, 6L90 (300mm), HP Miscellaneous Mechanical Diode® GM-MD-6-2

Thrust Washer GM-WP-16

  • 6L80, 6L90 (300mm)
  • 6L90 (Captive Clutch)

Sonnax thrust washer GM-WP-16 replaces worn or damaged thrust washers in GM 6L90 Captive Clutch converters. Comprised of high-strength thermoplastic polymide (same...Read More

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6L80, 6L90 (300mm), 6L90 (Captive Clutch) Thrust Washer GM-WP-16

Thrust Bearing GM-N-22

  • 6L80, 6L90 (300mm)
  • 6L90 (Captive Clutch)
  • 8L90

Sonnax partially enclosed bearing GM-N-22 replaces the impeller-side bearing in GM 6L80 (late). 6L90, 300mm and 6L90 (Captive Clutch) converters. The impeller in t...Read More

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6L80, 6L90 (300mm), 6L90 (Captive Clutch), 8L90 Thrust Bearing GM-N-22

JMBX Performance Converter Kit GM-RK-688WC

  • 6L80, 6L90 (258mm), Multi-Plate Performance Converter
  • 6L80, 6L90 (300mm)
  • Street/Strip applications only. For use with GM 258mm early-style stators only.

A performance torque converter is highly specialized based on the performance characteristics of the specific vehicle. Sonnax has several levels of kits to ensure ...Read More

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6L80, 6L90 (258mm), Multi-Plate Performance Converter , 6L80, 6L90 (300mm) JMBX Performance Converter Kit GM-RK-688WC

JMBX Performance Converter Kit GM-RK-688

  • 6L80, 6L90 (258mm), Multi-Plate Performance Converter
  • 6L80, 6L90 (300mm)
  • Street/Strip applications only. For use with GM 258mm early-style stators only.

A performance torque converter is highly specialized based on the performance characteristics of the specific vehicle. Sonnax has several levels of kits to ensure ...Read More

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6L80, 6L90 (258mm), Multi-Plate Performance Converter , 6L80, 6L90 (300mm) JMBX Performance Converter Kit GM-RK-688

Sprag Cartridge GM-CS-5

  • 6L80 (300mm), Single-Plate Performance Converter
This part has been discontinued.

Bearing Race GM-N-23

  • 6L80, 6L90 (300mm)
  • 6L90 (Captive Clutch)
  • 8L90
  • Used with GM-N-22.

Sonnax 3-tanged bearing race GM-N-23 replaces the impeller-side bearing race in GM 6L80 (late), 6L90, 300mm and 6L90 (Captive Clutch) converters. The impeller in t...Read More

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6L80, 6L90 (300mm), 6L90 (Captive Clutch), 8L90 Bearing Race GM-N-23

Oversized Actuator Feed Limit Valve 104740-12

  • 6L45
  • 6L50
  • 6L80
  • 6L90

GM 6L45, 6L50, 6L80 and 6L90 units often suffer from shift abnormalities caused by excess wear in the actuator feed limit (AFL) bore. This wear prevents proper reg...Read More

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6L45, 6L50, 6L80, 6L90 Oversized Actuator Feed Limit Valve 104740-12

Oversized Pressure Regulator & Boost Valve Kit 104520-16K

  • 6L45
  • 6L50
  • 6L80
  • 6L90

GM 6L45, 6L50, 6L80 and 6L90 units may exhibit multiple line pressure and cooler/converter/lube flow problems due to excess wear in the pressure regulator bore. De...Read More

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6L45, 6L50, 6L80, 6L90 Oversized Pressure Regulator & Boost Valve Kit 104520-16K

Oversized Clutch Boost Valve 104740-01

  • 6L45
  • 6L50
  • 6L80
  • 6L90
  • Fits any of 3 locations

GM 6L45, 6L50, 6L80 and 6L90 clutch boost valves provide feedback pressure to their respective clutch regulator valves, balancing the regulators to assist with app...Read More

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6L45, 6L50, 6L80, 6L90 Oversized Clutch Boost Valve 104740-01

Pressure Regulator Valve Kit 104520-03K

  • 6L45
  • 6L50
  • 6L80
  • 6L90
This part has been discontinued. Click here to see the part instructions.

Oversized Pressure Regulator & Boost Valve Kit 104520-07K

  • 6L45
  • 6L50
  • 6L80
  • 6L90
  • NEW VERSION AVAILABLE UNDER PART #104520-16K.
This part has been discontinued. Click here to see the part instructions.

Pressure Regulator Valve Kit 104520-15K

  • 6L45
  • 6L50
  • 6L80
  • 6L90

GM 6L45, 6L50, 6L80 and 6L90 units may exhibit multiple line pressure and cooler/converter/lube flow problems due to excess wear in the pressure regulator bore. De...Read More

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6L45, 6L50, 6L80, 6L90 Pressure Regulator Valve Kit 104520-15K
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