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300mm Reluctor Type Input Shaft

300mm Reluctor Type Input Shaft

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SONNAX 300MM INPUT SHAFT 4L60E 4L65E 4L70E 77733-12S


Input shaft failure is a common problem as power levels are increased in GM 4L60, 4L60-E,
4L65-E and 4L70-E units. The Sonnax 300mm heavy duty input shaft 77733-
12S 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.

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