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Vehicle Info Needed77733-10SB Heavy Duty Input Shaft, 4L60/4L60-E
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Lowest Price Guarantee- Heavy Duty Input Shaft
- 4L60/4L60-E
- For 1985-later units with 298 mm converter
- 30-spline input shaft. For ’82–’84 units with 27-spline input shaft
Sonnax 77733-10SB Features:
Input shaft failure is a common problem in GM 4L60 and 4L60-E units as power levels are increased. Sonnax heavy duty input shaft 77733-10SB for 298mm torque converter 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
Upgrade Your Automatic Transmission for Maximum Strength!
Automatic transmission input shaft failure can be a common problem as power levels increase. Sonnax offers heavy and extreme-duty input shafts that are machined from specially heat-treated steel and utilize harder outer layers and ductile inner cores for strength and resistance. These shafts are suitable for any high-horsepower street, strip, or towing application.
