Gast - High Performance 12 volt Automotive Vacuum Pump 22D series Brake Drums Rotors Wheel Bearings 1947-55 Chevy GMC 1st Series 3100 3200 3600 3800 Truck Applications:

Applications:

Triple belt groove

These Systems are a ZERO offset to the factory disc brakes

Steering column installation kit for 1969-72 Chevy Chevelle

Gast - High Performance 12 volt Automotive Vacuum Pump 22D series Brake Drums Rotors Wheel Bearings 1947-55 Chevy GMC 1st Series 3100 3200 3600 3800 Truck Applications:This 12 volt Gast vacuum pump is for vehicles using engine combinations that provide little or no manifold vacuum required for braking. When vacuum drops below 15 in hg of vacuum, the vacuum switch activates the vacuum pump and increases the brake vacuum level to 22 in hg of vacuum. The compact, lightweight 22D Series offers oil less operation and is well suited for noise sensitive environments. It can be mounted in any plane and has a durable design,