#77733-51K INPUT DRUM, 700R4 / 4L60E / 4L65E, SLEEVE / PISTON / SEAL KIT 1982-UP

$ 88.00

SKU: PATC-S74569, #77733-51K, #45-1 Categories: , , Tags: , ,

Description

SONNAX INPUT DRUM, 700R4 / 4L60E / 4L65E, SLEEVE / PISTON / SEAL KIT 1982-UP

700R4, 4L60E Input Drum Reinforcement Kit

Part No. 77733-51K

  • Reinforcement Sleeve
  • Overrun Piston Inner Seal
  • Overrun Piston
  • Overrun Piston Outer Seal

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 piston rides). Sonnax offers a hardened steel sleeve that reinforces the input drum to prevent this failure. Sonnax input drum reinforcement kit 77733-51K includes a custom manufactured overrun piston that is designed to be used only with a stamped steel forward piston, eliminating the need to use OE cast forward pistons or aftermarket billet forward pistons.

  • Includes a custom manufactured overrun piston
  • Compatible with stamped steel forward pistons
  • Can be installed in early- and late-model units
  • Sleeve made from hardened chromoly steel
  • Sleeve design will not block clutch feed oil

Additional information

Weight5 lbs
Dimensions12 × 12 × 8 in