For extension-spring setups we carry galvanized aircraft cable in the common gauges, replacement pulleys, and the stamped end fittings these older systems use, along with the drums and fasteners that pair with them. We also carry torsion-side cable and drums for the newer conversions some Edgewood homes have had done. What we don't carry is every obsolete bracket or pulley casting from a door that's been modified more than once - if your setup has been patched with mismatched parts over the years, we may need to source a piece rather than pull it straight off the truck, and we'll tell you that up front instead of jury-rigging something that won't hold through next winter.