Yukon YGLGM11.5-30 Grizzly Locker for 11.5 30 Spline Axles | 2001-2018 GM Silverado/Sierra & 2003-2018 Dodge RAM 2500/3500

Features:

• Fits 11.5-inch 30 spline axles
• Compatible with GM and Dodge trucks
• Provides 100% power to both wheels
• Disengages smoothly during turns
• Patented design reduces failure points
• Built with heat-treated 8620 alloy internals
• Heavy-duty 8620 alloy carrier included
• No wiring or air lines required
• Ideal for off-road and drag racing
• Assembled and quality-tested in the USA
• Backed by a 1-year limited warranty
• Proven in high-torque and rugged conditions

Lock In Real Traction When It Actually Counts

If you’re tired of spinning one tire while the other just coasts, it’s time to upgrade to the Yukon Grizzly Locker. This mechanical locker delivers full power to both wheels when you need it, giving your truck true traction no matter the terrain. Whether you're launching at the strip, crawling over rocks, or pulling heavy loads through mud, the Grizzly keeps your axles locked in and pushing forward. Unlike selectable lockers that require air lines or electronics, this system engages automatically and mechanically, so you’re never left waiting for something to activate. And when you're turning on pavement or navigating tight corners, it backs off just enough to allow smooth, street-friendly operation. Built tough for daily drivers, work trucks, and off-road rigs alike, it's the kind of part you install once and trust for the long haul. If traction and durability are high on your list, this locker is one of the best investments you can make for your drivetrain.

Engineered For Strength With A Purpose Built Design

The Yukon YGLGM11.5-30 Grizzly Locker is designed specifically for 11.5-inch, 30-spline axles found in 2001–2018 GM Silverado and Sierra trucks, as well as 2003–2018 Dodge Ram 2500 and 3500 models. At its core is an 8620 alloy carrier paired with 8620 heat-treated internals, a combination known for handling high torque and resisting fatigue under extreme conditions. This locker uses a patented internal design that improves reliability by eliminating common failure points found in older locker systems. It engages both wheels fully under load, providing 100 percent torque transfer in straight-line situations while still allowing for smooth disengagement during turns. The mechanical engagement system means no airlines, wires, or switches, just dependable, automatic operation that works every time. Assembled in the USA, this unit is backed by a 1-year warranty against manufacturer defects, offering confidence both on and off the road. From drag racing to heavy towing, this Grizzly Locker is a proven solution for serious traction and drivetrain strength.

Fitment:

Chevrolet Silverado 2500 HD (2001-2018)

Chevrolet Silverado 2500 (2001-2004)

Chevrolet Silverado 3500 Classic (2007-2007)

Chevrolet Silverado 3500 HD (2007-2018)

Chevrolet Silverado 3500 (2001-2006)

Dodge Ram 3500 (2003-2010)/Dodge Ram 2500 (2003-2010) 

GMC Sierra 3500 (2001-2006)

GMC Sierra 3500 HD (2007-2018)

GMC Sierra 2500 HD (2001-2018)

GMC Sierra 2500 (2001-2004)

GMC Sierra 3500 Classic (2007-2007)

GMC Sierra 2500 HD Classic (2007-2007)

Ram 3500 (2011-2018)/Ram 2500 (2011-2018)

Notes:

• Confirm your axle is 11.5‑inch with 30‑spline setup
• Mechanical locker engages automatically, no electronics needed
• Designed for serious street, off‑road and drag use
• Patent‑pending internal design increases durability
• Uses 8620 heat‑treated internals and forged case
• Provides 100% torque to both tires when locked
• Allows disengagement during turns for safer street driving
• Assembled in the USA for quality assurance
• Backed by Yukon’s warranty covering defects and collateral damage
• Must match vehicle fitment list and verify differential type before install