Doors from the 1960 era in Western Springs usually run on torsion springs sized for a lighter, uninsulated panel, with steel tracks and rollers that have had sixty-plus years to wear. When we swap in a heavier insulated door, the old spring is almost always undersized - it'll lift the door but strain the opener doing it. We carry standard-width torsion springs, steel tracks, and nylon rollers on the truck for the common door sizes in this part of our service area.
What we don't carry stock is the custom wood carriage-style hardware some Western Springs owners ask for to match an older house - that gets special-ordered, and lead time depends on the manufacturer, not on us. If you want a specific wood-look panel or a non-standard width, plan for that ahead of a firm install date rather than expecting a same-week turnaround.