Sonnax 77733-12SB, 4L60E / 4L65E / 4L70E Heavy Duty Input Shaft

$ 580.00

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SKU: SX 77733-12SB, a21 ra b10 Categories: , Tags: ,

Description

4L60E / 4L65E / 4L70E Heavy Duty Input Shaft, Sonnax 77733-12SB. 

For units with 300mm converter, 4L65E 4L70E Input Shaft.

Input shaft failure is a common problem in GM 4L60-E, 4L65-E, 4L70-E units as power levels are increased. Sonnax heavy duty input shaft 77733-12SB for 300mm torque converter, reluctor-style units is ideal for any high-horsepower street or strip application. The shaft is manufactured from 300M ultra high-strength steel for exceptional toughness and resistance to fracture. It features a revised turbine end spline without an undercut where OE shafts commonly break.

  • High-strength 300M steel shaft is more than 2X stronger than OE
  • Shot peened for extreme durability
  • Unique design protects against failure from stress cracks

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Additional information

Weight 4 lbs
Dimensions 4 × 4 × 16 in