A new installation on a house like this starts with pulling the old door, spring system, and track completely, since matching new hardware to 1980s brackets rarely holds up long-term. The opening gets checked for square and for header clearance, especially on homes where the garage was part of the original 1985 build rather than added later.
From there it's new track, new spring system sized to the door weight, a new door - insulated if the owner wants it, given the cold-moderate climate here - and a new opener with a working photo-eye pair. Wiring gets checked, not assumed good, since original garage electrical from this era wasn't always run to today's standard. The whole job gets tested under load before anyone leaves, open and close, multiple cycles, checking balance and the auto-reverse function actually works. That last check isn't optional. It's the one thing we won't skip to save time on a job.