Torsion spring inventory
That era mostly used torsion springs mounted above the door on a steel tube, so that's the bulk of our stock: springs, center bearing plates, cable drums, and the galvanized lift cables that run down each track.\n\nWe also carry extension springs and the safety cables that should run through them, since some of the older 1960s construction in the service area still has the side-mounted extension setup instead of torsion.
