The truck carries torsion springs sized for the standard residential door widths that make up most of Cinco Ranch's housing - single and double doors on steel sectional panels, the most common configuration for houses built around 1997. Steel rollers, cables, and standard-size drums for those same doors are on the truck too, since spring failure rarely shows up alone once a system's been running two-plus decades. Opener gear kits for the mainstream chain and belt-drive units sold through the late 1990s and early 2000s are stocked as well, covering the stripped-gear failure that's common on openers from that window. What isn't carried as standard stock: parts for specialty or imported opener brands, and custom panel sizes outside the common residential widths. Those get ordered once we've confirmed exactly what's needed on site, and we'll tell you that up front rather than promise a part we don't have.