Input shaft failure is a common problem in GM 4L60 and 4L60-E units as power levels are increased. Sonnax heavy duty input shaft 77733-10S for 298mm torque converter 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 feedholes 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 extreme durability
Unique design protects against failure from stress cracks

More From This Category

PHC Clutch Bearing, Release, For Mercedes Benz 0303 Coach, OM442 1/74- 1974, Each

PHC Clutch Bearing, Release, For Mercedes Benz 0303 Coach, OM442 1/74- 1974, Each

$409.88

View
Motive Gear Differential Bearing Kit, Koyo, For RAM 1500 2011–2016, Kit

Motive Gear Differential Bearing Kit, Koyo, For RAM 1500 2011–2016, Kit

$256.56

View
RTS OE Speedometer Gear, For GM, 700R4 4L60 TH350BOP, 18 Tooth Drive, Each

RTS OE Speedometer Gear, For GM, 700R4 4L60 TH350BOP, 18 Tooth Drive, Each

$47.25

View
Wilwood Bearing, Spherical, 1.00 Odx.50 Idx.50

Wilwood Bearing, Spherical, 1.00 Odx.50 Idx.50

$28.78

View
MANLEY Connecting Rod Pin Bushing, Bronze, .997 in. OD., .929 in. ID., .975 in. Length, Each

MANLEY Connecting Rod Pin Bushing, Bronze, .997 in. OD., .929 in. ID., .975 in. Length, Each

$16.34

View