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Line Pressure Booster Kit 4L60E-LB2

  • 4L60-E
  • 4L65-E
  • 4L70-E
  • Late style

Line pressure booster kit 4L60E-LB2 fits late-style GM 4L60-E, 4L65-E and 4L70-E pumps. Sonnax hydraulic line pressure booster kits contain stronger pressure regul...Read More

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4L60-E, 4L65-E, 4L70-E Line Pressure Booster Kit 4L60E-LB2

Input Housing Forward Sleeve Kit 77733-52K

  • 4L60
  • 4L60-E
  • 4L65-E
  • 4L70-E
  • Requires Sonnax overrun sleeve and compatible overrun piston. See instructions for details.

Input housing failure at the shaft and forward piston areas is common in high-torque 4L60, 4L60-E, 4L65-E and 4L70-E transmissions. Sonnax input housing forward sl...Read More

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4L60, 4L60-E, 4L65-E, 4L70-E Input Housing Forward Sleeve Kit 77733-52K

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

TCC Regulator & Isolator Valve Kit 84754-01K

  • 4T60-E
  • Fits '93-later units.

Common complaints with '93-later GM 4T60-E units are falling out of lockup hot, codes 39, 740 and 1870, adverse lockup in cold weather, torque converter shudder an...Read More

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4T60-E TCC Regulator & Isolator Valve Kit 84754-01K

Pump Vane 4662

  • 4T60
  • 4T60-E
  • Koyo (OE Manufacturer)

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4T60, 4T60-E Pump Vane 4662

Channel Plate Sleeve 8041

  • 4T60
  • 4T60-E

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4T60, 4T60-E Channel Plate Sleeve 8041

Input Carrier Lube Dam 8368

  • 4T60
  • 4T60-E
This part has been discontinued.

Oil Pump Drive Shaft 84874

  • 4T60
  • 4T60-E
This part has been discontinued.

Final Drive Sungear 75884B-01K

  • 4T60
  • 4T60-E
  • 3.33 ratio, 30-Tooth
This part has been discontinued. Click here to see the part instructions.

Differential Side Gear Thrust Washer 75890-30

  • 4T60
  • 4T60-E

Sonnax has designed a replacement thrust washer 75890-30 for differentials with 2-3/16" O.D. washers when these OE washers get worn or destroyed. Shims not a...Read More

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4T60, 4T60-E Differential Side Gear Thrust Washer 75890-30

Oversized TCC Apply Valve Kit 84754-16K

  • 4T60
  • 4T60-E
  • '96-Earlier with steel valve

In GM 4T60 and 4T60-E units, the TCC apply valve acts as the switch valve for converter apply and release. The TCC regulator valve controls TCC apply pressure. Bot...Read More

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4T60, 4T60-E Oversized TCC Apply Valve Kit 84754-16K

Modulated Line Boost Valve Kit 84754-17K

  • 4T60
  • 4T60-E
  • High Ratio, .199" dia. small spool

Vehicles with GM 4T60 or 4T60-E transmissions often exhibit such problems as poor line rise, soft shifts, poor Reverse boost, and/or 2nd and 3rd clutch distress. T...Read More

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4T60, 4T60-E Modulated Line Boost Valve Kit 84754-17K

Reverse Boost Valve Kit 84754-19K

  • 4T60
  • 4T60-E
  • High Ratio, .293" dia. small spool

Vehicles with GM 4T60 or 4T60-E transmissions often exhibit such problems as poor line rise, soft shifts, poor Reverse boost, and/or 2nd and 3rd clutch distress. T...Read More

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4T60, 4T60-E Reverse Boost Valve Kit 84754-19K

TCC Apply Valve Kit 84754-22K

  • 4T60
  • 4T60-E
  • '96-Earlier with steel valve

In GM 4T60 and 4T60-E units, the TCC apply valve acts as the switch valve for converter apply and release. The TCC regulator valve controls TCC apply pressure. Bot...Read More

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4T60, 4T60-E TCC Apply Valve Kit 84754-22K

1-2 Shift Valve 84754-23K

  • 4T60
  • 4T60-E
This part has been discontinued. Click here to see the part instructions.

Reverse & Modulated Line Boost Valve Kit 84754-24K

  • 4T60
  • 4T60-E
  • Low ratio
This part has been discontinued. Click here to see the part instructions.

Reverse & Modulated Line Boost Valve Kit 84754-25K

  • 4T60
  • 4T60-E
  • High Ratio

Vehicles with GM 4T60 or 4T60-E transmissions often exhibit such problems as poor line rise, soft shifts, poor Reverse boost, and/or 2nd and 3rd clutch distress. T...Read More

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4T60, 4T60-E Reverse & Modulated Line Boost Valve Kit 84754-25K

Tool Kit 84754-TL5

  • 4T60
  • 4T60-E
This part has been discontinued. Click here to see the part instructions.

Bearing Kit SBK-G11

  • 4T60
  • 4T60-E
  • Fits '84-later

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4T60, 4T60-E Bearing Kit SBK-G11

Oversized Accumulator Pin & Reamer Kit 84573-02K

  • 4T60
  • 4T60-E
  • Fits 1-2 and 2-3 accumulator locations only
This part has been discontinued. Click here to see the part instructions.

Oversized Accumulator Pin 84573-01K

  • 4T60
  • 4T60-E
  • Fits 1-2 and 2-3 accumulator locations only

GM 4T60 and 4T60-E units commonly display negative shift characteristics that can be traced to excess wear at the 1-2 and 2-3 accumulator piston pin bores. Slippin...Read More

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4T60, 4T60-E Oversized Accumulator Pin 84573-01K

Modulated Line Boost Valve Kit 84754-12K

  • 4T60
  • 4T60-E
  • Low ratio, .276" dia. small spool
This part has been discontinued. Click here to see the part instructions.

Side Cover Repair Plate 84995-01

  • 4T60
  • 4T60-E
  • For stamped steel side covers
This part has been discontinued. Click here to see the part instructions.

Reverse Boost Valve Kit 84754-14K

  • 4T60
  • 4T60-E
  • Low ratio, .273" dia. small spool
This part has been discontinued. Click here to see the part instructions.

O-Ringed End Plug Kit 184740-03K

  • 9T45
  • 9T50
  • 9T60
  • 9T65
  • Fits both ETRS and non-ETRS valve bodies. Port configurations may change due to variations of casting channels.

OE end plugs are designed to prevent critical pressure loss by capping the bore while also functioning as a spring or valve stop. Repetitive spring motion, valve i...Read More

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9T45, 9T50, 9T60, 9T65 O-Ringed End Plug Kit 184740-03K

Pressure Regulator Boost Valve Kit 184740-02K

  • 9T45
  • 9T50
  • 9T60
  • 9T65

GM 9T45/50/60/65 transmissions may exhibit multiple line pressure and converter-related problems due to high wear in the main pressure regulator boost valve sleeve...Read More

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9T45, 9T50, 9T60, 9T65 Pressure Regulator Boost Valve Kit 184740-02K

ETRS Mode 2 Boost Valve Kit 184740-06K

  • 9T45
  • 9T50
  • 9T60
  • 9T65

GM 9T45/50/60/65 transmissions using drive-by-wire may develop issues due to wear of the ETRS mode 2 boost valve. Sonnax ETRS mode 2 boost valve kit 184740-06K has...Read More

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9T45, 9T50, 9T60, 9T65 ETRS Mode 2 Boost Valve Kit 184740-06K

Signal Damper Piston Kit 184740-01K

  • 9T45
  • 9T50
  • 9T60
  • 9T65

Signal dampers are used in GM 9T45/50/60/65 transmissions to dampen or smooth out the signal fluid pressure applied from each control solenoid before the fluid flo...Read More

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9T45, 9T50, 9T60, 9T65 Signal Damper Piston Kit 184740-01K

Solenoid Stabilization Clip Insert 184740-04K

  • 9T45
  • 9T50
  • 9T60
  • 9T65

GM 9T45/50/60/65 transmission heavy linear force solenoids (LFS) are held in place by small spring retainers. These spring retainers are prone to collapse, allowin...Read More

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9T45, 9T50, 9T60, 9T65 Solenoid Stabilization Clip Insert 184740-04K

Zip Kit® 9T45-ZIP

  • 9T45
  • 9T50
  • 9T60
  • 9T65

Sonnax Zip Kit 9T45-ZIP targets the root cause of multiple complaints by sealing the critical circuit pressure losses in GM 9T45/50/60/65 series valve bodies. The ...Read More

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9T45, 9T50, 9T60, 9T65 Zip Kit® 9T45-ZIP
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