Yep...’66 Bonneville 389 w four wheel drum brakes. In 1973, the shoes glazed over going down I-70 in the Rockies and stopping power all but disappeared. Scared the bejeebers out of me, I tell you.
Of course, having my 320 pound Honda 350SL motorcycle stowed in the trunk didn’t help the braking much.
that is why I always kept a big hammer and a pad of sandpaper in my trunk....