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Reinforced Input Housing & Upgraded Input Shaft Kit 77733-04K

  • 4L60-E
  • 4L65-E
  • 4L70-E
  • 300mm reluctor style, 2004 & later
This part has been discontinued. Click here to see the part instructions.

Boost Valve Kit 77898E-3K

  • 4L60-E
  • 4L65-E
  • Early style, .490" dia., increased ratio, factory style

GM 4L60-E and 4L65-E transmissions frequently have poor line rise, which can result in 3-4 clutch, 2-4 band failure or poor shift quality. The duty cycle of the EP...Read More

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4L60-E, 4L65-E Boost Valve Kit 77898E-3K

Boost Valve Kit 77898E-6K

  • 4L60-E
  • 4L65-E
  • Early style, .470" dia., OE ratio, factory style

GM 4L60-E and 4L65-E transmissions frequently have poor line rise, which can result in 3-4 clutch, 2-4 band failure or poor shift quality. The duty cycle of the EP...Read More

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4L60-E, 4L65-E Boost Valve Kit 77898E-6K

Boost Valve Kit 77898E-K

  • 4L60-E
  • 4L65-E
  • Early style, .490" dia., increased ratio, O-ring style

GM 4L60-E and 4L65-E transmissions frequently have poor line rise, which can result in 3-4 clutch, 2-4 band failure or poor shift quality. The duty cycle of the EP...Read More

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4L60-E, 4L65-E Boost Valve Kit 77898E-K

Boost Valve Kit 77898E-4K

  • 4L60-E
  • 4L65-E
  • Early style, .470" dia., OE ratio, O-ring style

GM 4L60-E and 4L65-E transmissions frequently have poor line rise, which can result in 3-4 clutch, 2-4 band failure or poor shift quality. The duty cycle of the EP...Read More

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4L60-E, 4L65-E Boost Valve Kit 77898E-4K

Stator Support Shaft Assembly 77918S-09K

  • 4L60-E
  • 4L65-E
  • 4L70-E
  • 280mm or 300mm Converter, reluctor style, '04-later.

Sonnax stator support shaft assembly 77918S-09K in GM 4L60-E, 4L65-E and 4L70-E transmissions eliminates sleeve rotation by securing the sleeve in place with Locti...Read More

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4L60-E, 4L65-E, 4L70-E Stator Support Shaft Assembly 77918S-09K

Stator Support Shaft Assembly 77918S-08K

  • 4L60-E
  • 4L65-E
  • 4L70-E
  • 298mm Converter, reluctor style

Sonnax stator support shaft assembly 77918S-08K for GM 4L60-E, 4L65-E and 4L70-E transmissions eliminates sleeve rotation by securing the sleeve in place with Loct...Read More

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4L60-E, 4L65-E, 4L70-E Stator Support Shaft Assembly 77918S-08K

Forward & Reverse Abuse Bore Plug 77754-21

  • 4L60-E
  • 4L65-E
  • 4L70-E
  • Fits either of two locations

The bore plug in GM 4L60-E, 4L65-E and 4L70-E units is held loosely in place with a coiled spring pin, allowing the opposing spring and oil pressure forces to stro...Read More

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4L60-E, 4L65-E, 4L70-E Forward & Reverse Abuse Bore Plug 77754-21

EPC Solenoid Harness Adapter 34435-01K

  • 4L60-E
  • 4L65-E
  • 4L70-E
  • 4L80-E
  • 4L85-E
  • For use with early-style ('92–'02) EPC solenoid in late-style (’03-later) units, solenoid not included.

GM 4L60-E, 4L65-E, 4L70-E, 4L80E-, 4L85-E  transmissions have both early- and late-style EPC solenoids. The early-style (’92-’02) proved to be more reliable than t...Read More

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4L60-E, 4L65-E, 4L70-E, 4L80-E, 4L85-E EPC Solenoid Harness Adapter 34435-01K

Oversized Accumulator Pin & Reamer Kit 77754-02K

  • 4L60-E
  • 4L65-E
  • 4L70-E
  • Includes 10 pins & reamer.
This part has been discontinued. Click here to see the part instructions.

Pinless Forward Accumulator Piston Kit 77987-01K

  • 4L60-E
  • 4L65-E
  • 4L70-E
  • Dual-seal design

In GM 4L60-E, 4L65-E and 4L70-E units it is common for the plastic Forward accumulator piston to wear or crack. This causes a loss of fluid, resulting in delayed e...Read More

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4L60-E, 4L65-E, 4L70-E Pinless Forward Accumulator Piston Kit 77987-01K

Forward & Reverse Abuse Valve Kit 77754-35K

  • 4L60-E
  • 4L65-E
  • 4L70-E
  • Fits either of two locations.

In GM 4L60-E, 4L65-E and 4L70-E units, continuous oscillation of the Forward and Reverse abuse valves creates bore wear, allowing clutch feed pressure to exhaust. ...Read More

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4L60-E, 4L65-E, 4L70-E Forward & Reverse Abuse Valve Kit 77754-35K

TCC Apply Valve Kit 77805E-K

  • 4L60-E
  • 4L65-E
  • 4L70-E
  • Fits PWM units only.

Vehicles with GM 4L60-E, 4L65-E and 4L70-E transmissions have numerous converter overheat lockup complaints. These include no lockup or lockup immediately after 2n...Read More

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4L60-E, 4L65-E, 4L70-E TCC Apply Valve Kit 77805E-K

Oversized Accumulator Pin 77754-01K

  • 4L60-E
  • 4L65-E
  • 4L70-E
This part has been discontinued. Click here to see the part instructions.

Stator Support Shaft Assembly 77918S-1K

  • 4L60-E
  • 4L65-E
  • 4L70-E
  • 280mm or 300mm Converter, non-reluctor style. '99-'04.

Sonnax stator support shaft assembly 77918S-1K for GM 4L60-E, 4L65-E and 4L70-E transmissions eliminates sleeve rotation by mechanically fastening the sleeve in pl...Read More

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4L60-E, 4L65-E, 4L70-E Stator Support Shaft Assembly 77918S-1K

Servo Release Check Valve Kit 77701-076

  • 4L60
  • 4L60-E
  • 4L65-E
  • 4L70-E
  • 2nd Gear Servo Release

Technicians would like to find a way to successfully extend the life of 3-4 clutches, and improve the 2-3 shift feel. They have been trying, with limited success, ...Read More

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4L60, 4L60-E, 4L65-E, 4L70-E Servo Release Check Valve Kit 77701-076

High Performance Pressure Regulator Spring 77917-10

  • 4L60-E
  • 4L65-E
  • 4L70-E

This high-quality, high performance pressure regulator spring 77917-10 from Sonnax fits GM 4L60-E, 4L65-E and 4L70-E transmissions. The spring increases line press...Read More

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4L60-E, 4L65-E, 4L70-E High Performance Pressure Regulator Spring 77917-10

298mm Performance Converter Kit GM-RK-495

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

Oversized 4-3 Sequence Valve Kit 77964-14K

  • 4L60-E
  • 4L65-E
  • 4L70-E
  • Use with OE valve/bore only, addresses wear at inboard two spools & other locations.

GM 4L60-E, 4L65-E and 4L70-E transmissions often have trouble shifting into or holding 4th Gear due to excess wear in the sequence valve bore. This wear allows v...Read More

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4L60-E, 4L65-E, 4L70-E Oversized 4-3 Sequence Valve Kit 77964-14K

298mm Performance Converter Kit GM-RK-498

  • 298mm LU (TH250C, TH350C, 200-4R, 4L60 & E)
  • 4L60 (700-R4), 4L60-E (298mm), Multi-Plate Performance Converter
  • Street/Strip applications only. For use with GM 258mm early-style stators only.
This part has been discontinued. Click here to see the part instructions.

Input Drum Reinforcement Kit 77733-01K

  • 4L60
  • 4L60-E
  • 4L65-E
  • 4L70-E
This part has been discontinued. Click here to see the part instructions.

298mm Performance Converter Kit GM-RK-495WC

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

Shim 77406-10

  • 4L60
  • 4L60-E
  • 4L65-E
  • 4L70-E
  • TH350
  • TH350C
  • Rear bearing

Sonnax has designed .010" thick rear endplay shim 77406-10 to allow adjustment to the total and top unit endplay in GM TH350, TH350C and 4L60 (700-R4)/4L60-E serie...Read More

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4L60, 4L60-E, 4L65-E, 4L70-E, TH350, TH350C Shim 77406-10

3-4 Accumulator Sleeve Kit 77998-01K

  • 4L60
  • 4L60-E
  • 4L65-E
  • 4L70-E

The 3-4 accumulator bore on GM 4L60 and 4L60-E series cases can become scored, resulting in the loss of 4th servo feed and 4th accumulator pressure. Scoring is cau...Read More

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4L60, 4L60-E, 4L65-E, 4L70-E 3-4 Accumulator Sleeve Kit 77998-01K

298mm Performance Converter Kit GM-RK-498WC

  • 298mm LU (TH250C, TH350C, 200-4R, 4L60 & E)
  • 4L60 (700-R4), 4L60-E (298mm), Multi-Plate Performance Converter
  • Street/Strip applications only. For use with GM 258mm early-style stators only.
This part has been discontinued. Click here to see the part instructions.

4L60-E, 4L65-E
Heavy Duty Remanufactured Valve Body GM054-HD

Fits ’96–’08 units. Prevents input sprag and Forward clutch failure by engaging overrun clutch in D4 1st, 2nd and 3rd Gears and D3 1st and 2nd Gears. Includes fluid rerouting for additional D4 protection and new servo cushion spring to reduce downshift clunk.

Lay the perfect foundation for work trucks and muscle cars alike with premium remanufactured valve bodies from Sonnax. Heavy duty remanufactured valve body GM054-H...Read More

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4L60-E, 4L65-E Heavy Duty Remanufactured Valve Body GM054-HD

Boost Valve Kit 77898E-16K

  • 4L60-E
  • 4L65-E
  • 4L70-E
  • Late style, .472" dia., OE ratio, O-ring style

GM 4L60-E, 4L65-E and 4L70-E transmissions frequently have poor line rise, which can result in 3-4 clutch, 2-4 band failure or poor shift quality. The duty cycle o...Read More

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4L60-E, 4L65-E, 4L70-E Boost Valve Kit 77898E-16K

Boost Valve Kit 77898E-14K

  • 4L60-E
  • 4L65-E
  • 4L70-E
  • Late style, .421" dia. OE ratio, O-ring style

GM 4L60-E, 4L65-E and 4L70-E transmissions frequently have poor line rise, which can result in 3-4 clutch, 2-4 band failure or poor shift quality. The duty cycle o...Read More

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4L60-E, 4L65-E, 4L70-E Boost Valve Kit 77898E-14K

4L60-E, 4L65-E
Heavy Duty Remanufactured Valve Body GM053-HD

Fits ’96–’08 units. Enhanced input sprag and Forward Clutch durability by engaging overrun clutch in D3 1st and 2nd Gears. Includes heavy duty 2-3 shift valve for enhanced protection.

Lay the perfect foundation for work trucks and muscle cars alike with premium manufactured valve bodies from Sonnax. Heavy duty remanufactured valve body GM053-HD ...Read More

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4L60-E, 4L65-E Heavy Duty Remanufactured Valve Body GM053-HD

4L60-E
Remanufactured Valve Body GM047

’95

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4L60-E Remanufactured Valve Body GM047
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