Eckler's Premier Quality Products 57134454 Chevy Neutral Safety Switch Turboglide & Turbo HydraMatic Best Quality Neutral Safety Switch Fits 1957 With Original Turboglide The neutral safety switch is a critical safety device that disables the starter operation when the vehicles transmission is not in neutral or park Chevy Neutral Safety Switch, Turboglide & Turbo Hydra-Matic, 1955-1957 Chevy Neutral Safety Switch, Turboglide & Turbo Hydra-Matic, 1955-1957