Transmission Parts GM Internal Shim
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Symptoms:

  • Excess endplay
  • Driveline noise

Cause:

Normal wear of the shim.

Correction:

This selective rear unit endplay shim installs between the rear reaction carrier support and the case bearing and allows for adjustment to the total and top unit endplay.

4L60, 4L60-E, 4L65-E, 4L70-E, TH350, TH350C

Shim
Part No. 77406-10

Rear bearing

Package Quantity: 10

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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 series applications. This selective shim installs between the rear reaction carrier support and the case bearing. The total unit endplay (tested by dial indicator on the input shaft) should not exceed .036" (.005" to .036").

  • Material: Steel
  • Thickness: 0.010"
  • Inner Dia.: 1.725"
  • Outer Dia.: 2.310"
  • 4L60, 4L60-E, 4L65-E, 4L70-E, TH350, TH350C Shim 77406-10

Related Sonnax Parts

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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