Yukon Gear & Axle Spartan Locker

The Yukon Gear & Axle Spartan Locker is a mechanical lunchbox-style locker, also called a drop-in differential locker or locking differential. It gives you reliable, 100% lockup traction at a low cost. It replaces the spider gears in a standard carrier case. A locker joins the axle shafts together so both wheels get equal torque, even when one tire has little grip.

Key Features:

• Built from heat-treated 9310 steel for strength and durability
• Heat-treated, precision-cut teeth
• Chromoly drivers for added strength
• Large pins and springs
• Drops into a standard differential case in place of the spider gears
• No thrust washers or shims needed
• Mechanical design is always engaged, so there are no switches, air lines or wiring
• Includes a heavy-duty cross pin shaft on applicable applications

The spring-and-pin design keeps installation simple. The differential carrier usually does not need to be removed, which can cut installation cost. The Spartan Locker suits off-road, trail and utility use where traction matters. It comes from USA Standard Gear, sold under the Yukon Gear & Axle brand.