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Summit Racing™ Adjustable Vacuum Modulators

4.77 out of 5 stars 31 Customer Reviews

Every transmission rebuild should include a new vacuum modulator. Our Summit Racing™ Adjustable Vacuum Modulators allow you to tailor the shift points up or down a few hundred RPM and dial in your GM turbo Hydramatic transmission to shift right where you want it.

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Summit Racing™ Adjustable Vacuum Modulators SUM-G110

Vacuum Modulator, GM TH350, TH400, Push-In, Adjustable, Each

Part Number: SUM-G110

4.77 out of 5 stars ( 31 )

Estimated Ship Date: Monday 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

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