New Old Stock GM Automatic Transmission Modulator that is still in it's original AC GM Box having part #3745169.
This automatic powerglide Vacuum Modulator has never been used or installed on a car. It is in mint original condition and still looks like new and has AC stamped into the backside.
From what I understand this Modulator is correct for all 1958-1962 Chevrolet's having a powerglide transmission. Please view all of my close-up photos showing you the exact condition, check the part number and then decide if this NOS Factory AC Delco Vacuum Modulator will work on your 1958-1962 Chevrolet or Corvette.
