Introducing the Yukon Gear & Axle (YDGF9-31-SM) 31-Spline Trac-Loc Limited Slip Differential, the ultimate choice for performance, durability, and strength. This positraction differential is designed to provide smooth yet aggressive traction, giving you the confidence you need to tackle a wide variety of terrains with ease. Constructed with a high strength nodular case, forged 4320 chromoly spider gears, and composite clutches, the Yukon Dura Grip is engineered for long life and is completely rebuildable. The 4 pinion design ensures optimal traction, enhanced handling, and maximum torque distribution, allowing for improved vehicle control and stability in demanding driving conditions. When it comes to purchasing automotive parts, authenticity matters. Knockoff differentials may offer a lower price, but they often lack the quality, performance, and reliability of genuine products like the Yukon DuraGrip. Investing in an authentic differential guarantees superior quality, durability, and safety, ensuring the longevity of your vehicle's differential system. Backed by extensive product testing and a warranty that protects buyers from manufacturing defects, the Yukon Dura Grip is proudly assembled in the USA, offering reliable customer support and prompt resolution of any issues. Don't compromise your safety and driving experience - choose authenticity over imitation with the Yukon Gear & Axle (YDGF9-31-SM) 31-Spline Trac-Loc Limited Slip Differential. Upgrade your vehicle's performance and conquer any terrain with confidence.