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77733-51KA


Input Housing Overrun Sleeve Kit

$90.79

Input Housing Overrun Sleeve Kit

 

The GM 4L60, 4L60-E, 4L65-E and 4L70-E input drum assembly is known to crack and strip out splines where the input shaft is pressed into it (where the overrun piston rides). Sonnax offers a hardened steel sleeve that reinforces the input drum to prevent this failure. Sonnax input housing overrun sleeve kit 77733-51KA includes a custom manufacured overrun piston designed for use only with a stamped steel forward piston, eliminating the need to use aluminum forward pistons. For additional torque capacity, this kit can be used in conjunction with input housing forward sleeve kit 77733-52K.

  • High-strength, chromoly steel sleeve increases input housing torque capacity by protecting the shaft and overrun piston areas
  • Custom overrun piston works with steel forward piston
  • Universal design fits both early- and late-style units

Contents

  • Overrun Piston
  • Overrun Reinforcement Sleeve
  • Outer Overrun Piston Seal
  • Inner Overrun Piston Seal
Weight .66 lbs
Dimensions 9 × 7 × 1 in

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