Yukon Gear & Axle YGLGM14T-3-40 Grizzly Locker for GM 14T Truck 3.40 & Down

The Yukon Grizzly Locker is a mechanical positive-locking differential engineered for extreme off-road performance, rock crawling, trail running, off-road racing, and drag racing. This automatic speed-sensing locker delivers 100% power to both tires for maximum traction while still allowing smooth disengagement during turns on the street.

Advanced Design Features:

• Patented internal design with larger radius clutch teeth at the base for up to 350% greater strength compared to back-cut designs
• Oversized gear teeth resist breakage from shock-loading and catastrophic axle failure
• Forged case and internal components for maximum durability
• Automatic engagement and disengagement based on wheel speed differential
• No external controls or air lines required

Application:

• Fits GM 14-bolt truck differentials with 10.5-inch ring gear
• For axles with 3.40 and lower (numerically higher) gear ratios
• 30-spline axle shafts

The Yukon Grizzly Locker provides the ultimate traction solution for serious off-road enthusiasts who demand reliability in the most demanding conditions. Its proven design combines the convenience of automatic operation with the strength needed for high-torque applications.