In GM 4L60 units, modifying or replacing the throttle valve is a common practice during rebuild, but these modifications and replacements often alter performance, leaving the core unusable. Sonnax replacement throttle valve 77968-02 aids in restoring the core to original condition by following the OE design.

Valve is made from hardened steel
Follows OE design
Salvages cores
Drop-in Zip Valve™ installs quickly and easily

Learn More About Zip Valve™ Drop-In Repairs

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