Just found it, not sure why I have it. Won't fit my car, but it fits a lot of the old Buicks. Look up what this will fit here. Pay shipping and it's yours. Raybestos part WC37080. Box is banged up, cylinder is brand new.
Front LH side for a wide spread of GM cars from '65 thru '70. Impala & Grand Prix for example, may cross to LeSabre & Riviera?