4L60E 4L65E 4L70E TRANSMISSION INPUT SHAFT SONNAX HEAT TREATED HEAVY DUTY FITS '93+ 300mm RELUCTOR STYLE

SKU:
S74670GA
Condition:
New
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Sonnax 

HEAVY DUTY & PERFORMANCE
HEAT TREATED
INPUT SHAFT
  • FITS 300mm RELUCTOR TYPE ONLY
  • FITS '93+ 4L60E  4L65E  4L70E
  • High strength material for high performance applications
  • Chamfered feed holes and shot peening reduce stress cracks and increase service life
  • Deep cryogenic treatment for additional toughness
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  • Input shaft failure is a common problem in GM 4L60-E, 4L65-E and 4L70-E units as power levels are increased. Sonnax heavy duty input shaft 77733-12S for 300mm reluctor-style units is made of specially heat treated steel with very hard outer layers with a more ductile inner core for strength and resistance to fracture.
  • The feed holes are chamfered to reduce stress and the shaft is further processed by shot peening and deep cryogenic treatment.
  • This shaft is suitable for any high-horsepower street or strip application.
  • PHOTO SHOWS ACTUAL SONNAX HEAVY DUTY INPUT SHAFT
  • SONNAX 77733-12S
  • Fits 300mm reluctor-style units only.
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