This Switch will supply then remove ground to a circuit. 1970-american-motors-ambassador-esi2228326 750 in Long - 3/8

750 in Long - 3/8 in Diameter - 0

875 in Center to Center - Plastic - Clear - Bell Helmets - Set of 30

Quick Change Gear Set - 8500 Series - Set 13 - 10 Spline - 4

950 in OD - 2

Starter - Ultra-Duty - Gear Reduction - Reverse Mount - Reverse Rotation - Asphalt Bellhousing - Each

This Switch will supply then remove ground to a circuit. 1970-american-motors-ambassador-esi2228326 750 in Long - 3/8These RPM Activated Switches will perform a variety of different functions from turning on a bulb or solenoid to activating an MSD Timing Control at a desired rpm. The RPM Activated Switch, PN 8950, has two activation wires; one to ground a circuit and the other to open a circuit. Simply plug in an rpm module and wire the Switch to the circuit you want to activate. When the engine rpm reaches that amount, the circuit is activated and will remain on