Sonnax 77733-02K, 4L60 / 4L60E / 4L65E / 4L70E Input Drum Reinforcement Kit

$ 34.00

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SKU: SX 77733-02K, a19 ra b23 Categories: , , Tags: , ,

Description

4L60 / 4L60E / 4L65E / 4L70E Input Drum Reinforcement Kit, Sonnax 77733-02K. 

The GM 4L60, 4L60-E, 4L65-E and 4L70-E input drum assembly is known to crack where the input shaft is pressed into it (where the overrun clutch rides). Sonnax offers a hardened steel sleeve that reinforces the input drum to prevent this failure. OE overrun pistons must be machined when using this input drum reinforcement kit 77733-02K.

  • Sleeve made from hardened chromoly steel
  • Can be installed in early- and late-model units*
  • Sleeve design will not block clutch feed oil

Will not repair a cracked drum. Requires 96-earlier aluminum forward piston or Sonnax billet forward piston 77764-01, cannot be used with stamped steel forward piston.

  • Reinforcement Sleeve
  • Overrun Piston Inner Seal

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Additional information

Weight 1 lbs
Dimensions 4 × 4 × 3 in