Built To Perform. Built To Last.

Yukon Spin Free Kits

Yukon Gear & Axle Spin Free Kits replace the failure-prone and expensive factory unit bearings with tapered bearings and races. The result is not only a design that is easier and more economical to service, but one that offers significant increases in fuel efficiency because there are fewer rotating parts in the drivetrain for the engine to spin. Less work equals more mpg. These hub kits also include low-profile Yukon Hardcore premium locking hubs, for quick changes between two-wheel and four-wheel drive.

Less work equals more MPG. These hub kits also include low-profile Yukon Hardcore premium locking hubs for quick changes between two-wheel and four-wheel drive.

Shop Yukon Spin-Free Kits here on Randys WorldWide today.

HOW TO CREATE & READ RING GEAR PATTERNS

Gear tooth patterns are harbingers… they can foretell whether your ring and pinion gear set is going to live a long and prosperous life or if it’s doomed to an impending catastrophic failure. Pulling off a proper differential setup comes down to precise adjustments. Parameters like pinion depth, backlash, pinion-bearing preload, and carrier-bearing preload allow you to fine tune the relationship between gear teeth to ensure proper meshing and ultimate durability.

SIMPLE INSTALLATION

Installation of a lunchbox locker is much simpler than full carrier lockers, which require complete disassembly and reassembly of the differential.

Spartan Lockers feature a unique pin and spring design to allow for an even easier ‘drop-in’ install vs. other lunchbox lockers.

Because of its aggressive locking action the Spartan is not recommended for vehicles that see regular ‘daily driver’ usage.

For vehicles with tires larger than 32″ it is recommended to go with a full differential locker.

SPARTAN LOCKER INSTALLATION WALKTHROUGH

The Spartan Locker from USA Standard Gear is an affordable yet high quality lunchbox locker that improves traction and off-road performance. In this short tech video we'll show you just how easy the Spartan Locker is to install within your differential carrier.