Sonnax 77733-11S Heavy Duty Input Shaft fits 4L60E 4L65E 4L70E (300mm)

Brand: Sonnax Type: Input Shaft Interchange Part Number: S74670G Manufacturer Warranty: No Warranty Manufacturer Part Number: 77733-11S Country/Region of Manufacture: United States  Universal Fitment: Yes Vintage Part: No Performance Part: Yes 4L60-E, 4L65-E, 4L70-E Heavy Duty Input ShaftPart No. 77733-11S Fits 300mm non-reluctor style units only. Input shaft failure is a common problem in GM 4L60-E, 4L65-E, 4L70-E units as power levels are increased. The Sonnax heavy duty input shaft 77773-11S for 300mm non-reluctor style units is ideal for any high-horsepower street or strip application. The shaft is manufactured from a specially heat treated steel with very hard outer layers and 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. High-strength steel ideal for high performance applications Shot peened and cryogenically treated for extre