The complaint we hear most from this stretch near York is a door that's started to sag at one corner, or a panel that's begun to bow slightly along the bottom section - both classic signs of a steel door built before insulated, reinforced panels were standard. On a door installed around 1962's building norms, the steel gauge was thinner and the stiffening ribs sparser than what goes into a new door today, so decades of opening and closing eventually show up as a visible dip on one side.
The other common symptom is a door that binds partway through its travel, catching on the track instead of rolling smoothly. On houses this age that's often not a worn roller - it's a track bracket that's loosened from framing that's shifted over sixty years, pulling the track slightly out of parallel. Either symptom is worth a look before the door fails outright, because a door that's binding on its track is also straining the opener motor and the cables holding it up.