Sonnax

77749-02K

Sonnax Smart Shell Reaction Shell

Hard Parts

This item includes the hardened shell, made from thicker steel.
The kit comes with a modified OEM roller clutch race to accept the Torrington bearing.

Sonnax GM 700R4 Sun Gear Smart Shell Race Torrington 4L60 4L60E 4L70E 4L65E 4L75E Transmission. NEW Sonnax hardened sun gear shell for the 700R4, 4L60E, 4L65E, 4L70E, 4L75E. This item includes the hardened shell, made from thicker steel. The kit comes with a modified OEM roller clutch race to accept the Torrington bearing. Bearing included. This is one of the main weak points in these transmissions and is becoming a very popular item to replace. With this new hardened unit, you will eliminate this potential problem.

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