Transmission Parts GM 4L70-E 4L60 4L60-E 4L65-E Case Accumulator Components
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Symptoms:

  • Soft shifts

Cause:

Inadequate accumulator piston control due to low rate or broken spring.

Correction:

This spring has performance specifications to match the purple OE accumulator spring.

4L60, 4L60-E, 4L65-E, 4L70-E

1-2 or 3-4 Accumulator Spring
Part No. 74926

Package Quantity: 5

Find a Distributor

Sonnax offers accumulator spring 74926 for use in the 1-2 or 3-4 accumulator of GM 4L60 and 4L60-E series transmissions. The Sonnax spring has identical performance specifications to the purple OE accumulator spring, but is made of high strength material to ensure lasting spring life and reduce spring relaxation.

  • 4L60, 4L60-E, 4L65-E, 4L70-E 1-2 or 3-4 Accumulator Spring 74926

Related Sonnax Parts

Required

Recommended

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

4L60, 4L60-E, 4L65-E, 4L70-E

3-4 Accumulator Sleeve Kit 77998-01K

    Helps cure:
  • Case damage
  • Scored accumulator bores
  • Worn accumulator bores

Required

Recommended

200-4R, 4L60, 4L60-E, 4L65-E, 4L70-E Pinless Accumulator Piston Kit 77998-03K

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

Pinless Accumulator Piston Kit 77998-03K

In 200-4R applications, this kit can only be used in the 3-4 accumulator location.

    Helps cure:
  • Poor shift quality
  • Burnt clutches & bands

Required

Recommended

4L60 The Sure Cure® Kit SC-4L60

4L60

The Sure Cure® Kit SC-4L60

    Helps cure:
  • 3-4 Clutch failure
  • Burnt clutches & bands
  • Excess pump noise
  • Low line pressure
  • Low line rise
  • Low Reverse boost
  • 2-3 Shift feel poor
  • Early upshifts
  • Soft upshifts
  • Soft shifts
  • Slide shifts
  • Delayed Reverse

Required

Recommended

4L60-E, 4L65-E, 4L70-E The Sure Cure® Kit SC-4L60E

4L60-E, 4L65-E, 4L70-E

The Sure Cure® Kit SC-4L60E

Fully compatible with '95-later with PWM/EC3 (electronically controlled capacity clutch) control.

    Helps cure:
  • 3-4 Clutch failure
  • Burnt clutches & bands
  • Pump noise
  • Reduced 3-4 clutch life
  • Rotor fracture
  • Erratic line pressure
  • Low line rise
  • 1-2 Harsh
  • 2-3 Shift feel poor
  • Poor shift quality
  • Code 894, 1870
  • Falls out of lockup when hot
  • No lockup
  • TCC slip
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