Steel sectionals, not wood
You're less likely to be dealing with the original wood-panel doors and spring hardware that show up on 1950s and 60s stock elsewhere in the region, and more likely to have steel sectional doors on torsion springs rated for a heavier, factory-built door. Those springs have a duty cycle - they wear out on cycle count, not age alone - and on a door installed in the mid-80s or 90s, a lot of them are coming due or already past it.