Spartan Locker for Ford 9" 28 or 31 Spline

Lunchbox Locker by Spartan Locker Description − The Spartan Locker, by USA Standard Gear, provides reliable traction at a low cost. The Spartan locker's design does not use the thrust washers and has a revolutionary spring and pin design that makes installation a snap!− Fits Ford 8" and 9" with 28 or 31 spline axles− Made from 9310 steel for added strength − Works with stock side gears in standard carrier case- This unit uses the factory side gears and is compatible with 2 & 4 pinion carriers Manufacturers Info - 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 re