Standard Spider Gear Set for Ford 9″ 31 Spline, 4-Pinion Design

– USA Standard Gear

USA Standard Gear sets the standard for quality parts at affordable pricing.
As a brand, USA Standard encompasses ring & pinions, axles, driveshafts, transmission and transfer case components, and installation kits, as well as the popular Spartan Locker the toughest lunchbox locker on the market.
Designed for the general installer and do-it-yourself customer, USA Standard provides unmatched reliability in replacement OE