USA Standard spool for Ford 9", 31 spline
- SKU: ZP FSF9-31
- Brand: USA Standard Gear
- Condition: NEW
- MPN: ZP FSF9-31
- Manufacturer: USA Standard Gear
- Manufacturer Warranty: 1
USA standard spool for Ford 9", 31 spline. USA Standard spool for Ford 9", 31 spline. Installing a quality USA Standard Gear spool is a cost-effective way to get 100% lockup. Installation is easy as they install in place of your differential carrier assembly. Each USA Standard Gear spool is made from high-quality 8620 steel and heat treated for additional strength. A spool is an outstanding choice for dedicated off-road and drag racing vehicles only.
