Smart-tech® Input Housing Kit With Heavy Duty Input Shaft / Gm 4L60E / 4L65E / 4L70E. For Units With 300mm Converter / Reluctor-style Shaft

Sonnax Smart-tech® Input Housing Kit With Heavy Duty Input Shaft for GM 4L60E, 4L65E, 4L70E

Upgrade your GM transmission rebuild with the Sonnax Smart-tech® Input Housing Kit, engineered specifically for 4L60E, 4L65E, and 4L70E units equipped with a 300mm converter and reluctor-style input shaft. This heavy-duty input shaft and housing assembly replaces the weak factory components that commonly fail under increased torque loads, making it an essential upgrade for performance and heavy-duty applications.

Key Features

• Heavy-duty input shaft designed to handle higher torque and eliminate spline twist and breakage
• Smart-tech® input housing kit with reluctor-style shaft for proper speed sensor operation
• Direct-fit replacement for units with 300mm torque converter
• Manufactured by Sonnax, a trusted name in transmission hard parts and upgrades
• Ideal for performance builds, towing, and heavy-duty street applications

Compatibility

This Sonnax input housing kit is compatible with Chevrolet/GM vehicles equipped with the 4L60, 4L60E, 4L65E, and 4L70E transmissions. It is designed for units using a 300mm converter and a reluctor-style input shaft. Please verify your transmission configuration before ordering.

Why Choose This Part?

The Sonnax Smart-tech® Input Housing Kit with Heavy Duty Input Shaft delivers the strength and reliability your 4L60E, 4L65E, or 4L70E needs to survive demanding conditions. Don't risk another failure with a weak factory shaft—upgrade to Sonnax quality and keep your transmission running strong. Order now and get fast shipping from Florida.