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Installation Instructions
USA Standard Spool For Ford 9in / 31 Spline
$179.89
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.
Installation InstructionsInstallation Instructions
Part Number: ZP FSF9-31
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