Maximum Traction, Minimal Cost – Trusted by Offroad Enthusiasts Across Utah
Upgrade your Ford’s differential with the Spartan Locker, a mechanical lunchbox locker designed for unbeatable 100% lockup traction without the high price tag. Perfect for off-road builds, rock crawlers, or daily drivers looking for added traction, this locker is easy to install thanks to its innovative spring-and-pin design — no thrust washers needed.
Crafted from high-strength 9310 steel, the Spartan Locker fits Ford 8" and 9" axles with 28 or 31 spline configurations and works with stock side gears in a standard carrier case. Whether you're trail riding in the Wasatch or crawling Moab, this locker delivers reliable traction exactly when you need it.
🔧 Features:
Fits Ford 8" & 9" differentials with 28 or 31 spline axles
Made from premium 9310 steel for extreme durability
Mechanical locker provides 100% lockup under torque
No thrust washers required — easier installation
Compatible with stock side gears in open carriers
Compatible Vehicles Include: Ford Bronco, F-100, Mustang, Maverick, Ranchero, Thunderbird, Falcon, and more (see full list below).
Installation available at our Sexton Offroad locations in Salt Lake City & Park City, Utah. Ask about in-store pickup and pro install options!
