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Sonnax Input Drum Reinforcement Sleeve, Seal & Piston Kit For Stamped Forward

Sonnax Input Drum Reinforcement Sleeve, Seal & Piston Kit For Stamped Forward

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Availability: In stock

$79.95

Quick Overview

SONNAX 4L60E 4L65E 700R4 INPUT DRUM REINFORCEMENT SLEEVE PISTON SEAL 77733-51K

Details

Reinforcement Sleeve
Overrun Piston Inner Seal
Overrun Piston
Overrun Piston Outer Seal
The GM 4L60, 4L60-E, 4L65-E and 4L70-E input drum assembly is known to crack where the input shaft is pressed into it (where the overrun piston rides). Sonnax offers a hardened steel sleeve that reinforces the input drum to prevent this failure. Sonnax input drum reinforcement kit 77733-51K includes a custom manufactured overrun piston that is designed to be used only with a stamped steel forward piston, eliminating the need to use OE cast forward pistons or aftermarket billet forward pistons.

Includes a custom manufactured overrun piston
Compatible with stamped steel forward pistons
Can be installed in early- and late-model units*
Sleeve made from hardened chrome-moly steel
Sleeve design will not block clutch feed oil
An alternative input drum reinforcement kit 77733-01K is compatible with aluminum forward pistons, but cannot be used with stamped steel forward pistons.

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