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Smart-Tech® Clutch Kit 77734-01K

  • 4L60
  • 4L60-E
  • 4L65-E
  • 4L70-E
  • Recommended clutch pack for Smart-Tech input housing kits.

Sonnax Smart-Tech clutch kit 77734-01K includes the eight .067" BorgWarner high energy frictions and seven .095" Lindered steels recommended for use with Sonnax Sm...Read More

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4L60, 4L60-E, 4L65-E, 4L70-E Smart-Tech® Clutch Kit 77734-01K

Smart-Tech® Input Housing Kit with Heavy Duty Input Shaft 77733-12KB

  • 4L60-E
  • 4L65-E
  • 4L70-E
  • For units with 300mm converter, reluctor-style shaft.

Limitations of the GM 4L60 series OE input housing are the root cause of 3-4 burnup in performance applications. The weak OE backing plate flexes during clutch app...Read More

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4L60-E, 4L65-E, 4L70-E Smart-Tech® Input Housing Kit with Heavy Duty Input Shaft 77733-12KB

Smart-Tech® Input Housing Kit with Heavy Duty Input Shaft 77733-11KB

  • 4L60-E
  • 4L65-E
  • 4L70-E
  • For units with 300mm converter, non-reluctor style shaft.

Limitations of the GM 4L60 series OE input housing are the root cause of 3-4 burnup in performance applications. The weak OE backing plate flexes during clutch app...Read More

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4L60-E, 4L65-E, 4L70-E Smart-Tech® Input Housing Kit with Heavy Duty Input Shaft 77733-11KB

Bearing Kit SBK-G12

  • 4L60
  • 4L60-E
  • 4L65-E
  • 4L70-E
  • Fits '82-later

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4L60, 4L60-E, 4L65-E, 4L70-E Bearing Kit SBK-G12

Impeller Hub GM-90CM-49MR

  • 4L60 (700-R4), 4L60-E (298mm), Multi-Plate Performance Converter

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4L60 (700-R4), 4L60-E (298mm), Multi-Plate Performance Converter Impeller Hub GM-90CM-49MR

Impeller Hub GM-90CM-40MR

  • 4L60-E, 4L65-E, 4L75-E (300mm), Multi-Plate Performance Converter

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4L60-E, 4L65-E, 4L75-E (300mm), Multi-Plate Performance Converter Impeller Hub GM-90CM-40MR

Line Pressure Booster Kit 4L80E-LB1

  • 4L80-E
  • 4L85-E

Sonnax hydraulic line pressure booster kits contain stronger pressure regulator springs and large ratio boost valves designed to work together to provide progressi...Read More

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4L80-E, 4L85-E Line Pressure Booster Kit 4L80E-LB1

Thrust Washer GM-WA-23

  • 4L60 (700-R4), 4L60-E, 200-4R (298mm) Single Plate Performance Converter (Mounting Ring)

Seals to input shaft

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4L60 (700-R4), 4L60-E, 200-4R (298mm) Single Plate Performance Converter (Mounting Ring) Thrust Washer GM-WA-23

Pinion Gear 77731-01

  • 4L60
  • 4L60-E
  • 4L65-E
  • 4L70-E
  • Rear Planetary

Sonnax pinion gear 77731-01 is a direct replacement for worn or damaged OE pinion gears in rear planetaries in listed GM transmissions. Helical pinion gear crafted...Read More

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4L60, 4L60-E, 4L65-E, 4L70-E Pinion Gear 77731-01

The Sure Cure® Kit SC-4L80E

  • 4L80-E
  • 4L85-E

Sonnax Sure Cure kit SC-4L80E, fully compatible with '91-later GM 4L80-E and 4L85-E units, is a comprehensive reconditioning package featuring the best Sonnax prod...Read More

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4L80-E, 4L85-E The Sure Cure® Kit SC-4L80E

The Sure Cure® Kit SC-4T60E

  • 4T60-E
  • Fits '93–'96 units.
This part has been discontinued. Click here to see the part instructions.

The Sure Cure® Kit SC-4T60E-1

  • 4T60-E
  • Fits '97-later units.
This part has been discontinued. Click here to see the part instructions.

Roll GM-RO-1

  • 258mm LU (4L60-E, 5L40-E)
  • 258mm LU (4T65-E)
  • 265mm LU (4T60-E, 4T80-E)
  • 4L80-E (Dual Stator)

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258mm LU (4L60-E, 5L40-E), 258mm LU (4T65-E), 265mm LU (4T60-E, 4T80-E), 4L80-E (Dual Stator) Roll GM-RO-1

Washer GM-WS-375

  • 4L60 (700-R4), 4L60-E, 200-4R (298mm NLU) Performance Converter
  • Powerglide TH350, TH400, 8" Performance Converter
  • Powerglide, TH350, TH400 (258mm) Performance Converter
  • Powerglide, TH350, TH400 (265mm) Performance Converter
  • Powerglide, TH350, TH400, 10" Performance Converter

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4L60 (700-R4), 4L60-E, 200-4R (298mm NLU) Performance Converter, Powerglide TH350, TH400, 8" Performance Converter, Powerglide, TH350, TH400 (258mm) Performance Converter, Powerglide, TH350, TH400 (265mm) Performance Converter, Powerglide, TH350, TH400, 10" Performance Converter Washer GM-WS-375

TCC Regulator & Isolator Valve Kit 77754-03K

  • 4L60-E
  • 4L65-E
  • 4L70-E
  • 4L60-E '97-earlier only, non-EC3 units

In GM 4L60-E, 4L65-E and 4L70-E units, severe wear of the TCC regulator valve bore is caused by oscillation of the OE valve allows regulated converter apply pressu...Read More

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4L60-E, 4L65-E, 4L70-E TCC Regulator & Isolator Valve Kit 77754-03K

Shift Cable Mount Bracket 34913-01

  • 4L60-E
  • 4L80-E
  • 4L85-E

Transmission cases made in 1994 and 1995 have neutral safety switch mounting holes but do not have the top mount shifter bracket holes. Sonnax shift cable mount br...Read More

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4L60-E, 4L80-E, 4L85-E Shift Cable Mount Bracket 34913-01

298mm Performance Converter Kit GM-RK-10

  • 298mm LU (TH250C, TH350C, 200-4R, 4L60 & E)
  • 4L60 (700-R4), 4L60-E, 200-4R (298mm NLU) Performance Converter
This part has been discontinued. Click here to see the part instructions.

Oversized Pressure Regulator Valve 77917-07

  • 4L60-E
  • 4L65-E
  • 4L70-E

A worn OE pressure regulator valve can be detected in two ways. The first is a dynamometer test that reveals low line pressure during boost conditions (look for 50...Read More

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4L60-E, 4L65-E, 4L70-E Oversized Pressure Regulator Valve 77917-07

TCC Solenoid Snout Kit 77942-01K

  • 4L60
  • 4L60-E

The plastic OE torque converter clutch solenoid snouts are prone to breakage causing them to leak oil that should be directed to the converter clutch apply valve. ...Read More

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4L60, 4L60-E TCC Solenoid Snout Kit 77942-01K

298mm Performance Converter Mounting Ring Kit GM-RK-11

  • 298mm LU (TH250C, TH350C, 200-4R, 4L60 & E)
  • 4L60 (700-R4), 4L60-E, 200-4R (298mm) Single Plate Performance Converter (Mounting Ring)
  • Adapts front-wheel drive GM 245mm cores to GM 298mm applications with 30-tooth input splines.

Sonnax 298mm performance converter mounting ring kit GM-RK-11 allows an early GM 245mm core to be adapted for use in 4L60 (700-R4) and 4L60-E applications that ori...Read More

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298mm LU (TH250C, TH350C, 200-4R, 4L60 & E), 4L60 (700-R4), 4L60-E, 200-4R (298mm) Single Plate Performance Converter (Mounting Ring) 298mm Performance Converter Mounting Ring Kit GM-RK-11

TCC Regulator & Isolator Valve Kit 77754-04K

  • 4L60-E
  • 4L65-E
  • 4L70-E
  • Fits all years & '98-later EC3 units

In GM 4L60-E, 4L65-E and 4L70-E units, severe wear of the TCC regulator valve bore caused by oscillation of the OE valve allows regulated converter apply pressure ...Read More

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4L60-E, 4L65-E, 4L70-E TCC Regulator & Isolator Valve Kit 77754-04K

300mm Performance Converter Mounting Ring Kit GM-RK-13

  • 280mm LU (4L60-E) “VJCX”
  • 300mm (4L60-E)
  • 4L60-E (300mm), Single-Plate Performance Converter (Mounting Ring)

Sonnax 300mm performance converter mounting ring kit GM-RK-13 allows an early GM 245mm lockup core to be adapted for use in 4L60-E applications that originally cam...Read More

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280mm LU (4L60-E) “VJCX”, 300mm (4L60-E), 4L60-E (300mm), Single-Plate Performance Converter (Mounting Ring) 300mm Performance Converter Mounting Ring Kit GM-RK-13

Reinforced Input Housing Kit with Heavy Duty Input Shaft 77733-13K

  • 4L60
  • 4L60-E
  • Fits 298mm units only
This part has been discontinued. Click here to see the part instructions.

298mm Performance Converter Mounting Ring Kit GM-RK-12

  • 298mm LU (TH250C, TH350C, 200-4R, 4L60 & E)
  • 4L60 (700-R4), 4L60-E, 200-4R (298mm) Single Plate Performance Converter (Mounting Ring)
  • Adapts front-wheel drive GM 245mm core to GM 298mm applications with 27-tooth input splines.

Sonnax 298mm performance converter mounting ring kit GM-RK-12 kit allows rebuilders to put together a high performance lockup converter. This kit is for use in 4L6...Read More

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298mm LU (TH250C, TH350C, 200-4R, 4L60 & E), 4L60 (700-R4), 4L60-E, 200-4R (298mm) Single Plate Performance Converter (Mounting Ring) 298mm Performance Converter Mounting Ring Kit GM-RK-12

Impeller Hub GM-90-71G

  • 280mm LU (4L60-E) “VJCX”
  • GM 4L60-E (280mm) “VJCX”

Sonnax impeller hub GM-90-71G is an excellent option for rebuilding GM 280mm (4L60-E) “VJCX” converters which are experiencing higher-than-normal pump rotor failur...Read More

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280mm LU (4L60-E) “VJCX” Impeller Hub GM-90-71G

TCC Apply Valve Kit 77805-K

  • 200-4R
  • 4L60
  • 4L60-E
  • Fits non-PWM units only.

Vehicles with GM 200-4R, 4L60 and 4L60-E transmissions have numerous converter overheat lockup complaints. These include no lockup or lockup immediately after 2nd ...Read More

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200-4R, 4L60, 4L60-E TCC Apply Valve Kit 77805-K

Reinforced Input Housing Kit with Heavy Duty Input Shaft 77733-14K

  • 4L60-E
  • 4L65-E
  • Fits 300mm non-reluctor style units only.
This part has been discontinued. Click here to see the part instructions.

Reinforced Input Housing Kit with Heavy Duty Input Shaft 77733-15K

  • 4L60-E
  • 4L65-E
  • 4L70-E
  • Fits 300mm reluctor style units only.
This part has been discontinued. Click here to see the part instructions.

Oil Deflector 77731-08

  • 4L60
  • 4L60-E
  • 4 Pinion Rear Planetary
This part has been discontinued.

Tool Kit 77917-TL

  • 200-4R
  • 4L60
  • 4L60-E
  • 4L65-E
  • 4L70-E

High-speed steel reamer tool Kit for 77917-06, 77917-07

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200-4R, 4L60, 4L60-E, 4L65-E, 4L70-E Tool Kit 77917-TL
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