The Yukon Gear Grizzly Locker (YGLGM14T-30) fits select 1967-2015 Chevrolet and GMC trucks, vans, and SUVs equipped with the GM 10.5-inch 14-bolt rear differential and 30-spline axles.

Engineered for extreme performance in rock crawling, trail running, and drag racing, the Grizzly Locker is a mechanical positive-locking differential that delivers 100% power to both tires. This unit is designed to install directly into a standard open carrier, replacing factory spider gears with heavy-duty internals capable of handling massive shock-loading. The patented design allows for disengagement during turns while maintaining maximum traction in a straight line.

Construction features high-strength 8620 steel internals for long-term durability. The inner clutch teeth are engineered with a larger radius at the base, providing up to 350% greater strength compared to traditional back-cut designs. This added material helps prevent breakage even during catastrophic axle failures, making it one of the most reliable mechanical lockers on the market.

• Fits GM 10.5" 14-bolt truck differential with 30-spline axles
• Installs into standard open carrier
• High-strength 8620 steel internals for added durability
• Patented internal design reduces common locker failures
• Assembled in the USA
• Manufacturer Part Number: YGLGM14T-30

Fits select 2001-2018 Chevrolet Silverado, GMC Sierra, and Dodge/Ram 2500/3500 heavy-duty trucks with the 11.5-inch rear axle and 30-spline shafts.

The Yukon Gear Grizzly Locker (YGLGM11.5-30) is a mechanical positive-locking differential engineered for extreme traction in high-torque environments like rock crawling, trail running, and drag racing. This unit provides 100% power to both tires for maximum straight-line performance while allowing for necessary disengagement during cornering. Built with high-strength 8620 steel internals, it features a patented design where the inner clutch teeth utilize a larger radius at the base to offer up to 350% greater strength compared to traditional back-cut designs.

• Specifically designed for GM and Chrysler 11.5" rear ends with 30-spline axle shafts
• High-strength 8620 steel internals for durability under shock-loading
• Patented internal design minimizes common locker failures and resists breakage
• Provides mechanical locking for 100% power delivery to both wheels
• Assembled in the USA
• Manufacturer Part Number: YGLGM11.5-30

Fits select 1955-1988 Ford, Lincoln, and Mercury vehicles equipped with the Ford 9-inch rear differential and 35-spline axles.

The Yukon Grizzly Locker is a heavy-duty mechanical positive-locking differential engineered for high-torque applications including rock crawling, off-road racing, and drag racing. This unit delivers 100% of available power to both drive wheels under load, yet allows for the necessary disengagement to negotiate turns on the street. The patented internal design specifically addresses common failure points by utilizing a larger radius at the base of the clutch teeth, providing up to 350% more strength than traditional back-cut designs.

Constructed with forged 8620 steel internals, this locker is built to survive shock-loading and extreme stress. It provides the reliability required for competition-level performance while maintaining predictable operation for trail and street use.

• Fits Ford 9" housings with 35-spline axle shafts
• Forged 8620 steel internals for superior durability
• Patented design reduces common locker failures and resists breakage
• Provides 100% traction to both wheels with automatic disengagement for cornering
• Assembled in the USA
• Manufacturer Part Number: YGLF9-35

The Yukon Gear Grizzly Locker is a heavy-duty mechanical positive-locking differential engineered for maximum traction in the most demanding environments. This 31-spline unit replaces the standard factory differential internals to provide 100% power to both drive wheels, ensuring consistent performance for rock crawling, off-road racing, and drag racing applications while still allowing for disengagement during cornering.

Constructed with high-strength 8620 steel internals, the Grizzly Locker (MPN: YGLF8.8-31) features a patented design that specifically addresses common failure points found in other lockers. The inner clutch teeth are engineered with a larger radius at the base, providing up to 350% greater strength than traditional back-cut designs. This reinforced tooth profile is built to withstand extreme shock-loading and protects against catastrophic axle failure.

• Fits Ford 8.8-inch differentials with 31-spline axles
• Mechanical positive-locking action delivers 100% power to both tires
• Forged 8620 steel internals for superior durability and lifespan
• Patented tooth design offers 350% more strength than back-cut alternatives
• Assembled in the USA
• Ideal for 4WD trail running, rock crawling, and high-performance street/strip use
• Manufacturer Part Number: YGLF8.8-31

Fits select 1985-2015 Ford F-150, F-250, F-350, Excursion, and E-Series trucks and vans with 10.25-inch or 10.5-inch rear differentials. This Yukon Grizzly Locker is a mechanical positive-locking differential engineered for the most demanding applications, including rock crawling, trail running, and drag racing.

Constructed with high-strength 8620 steel internals, the Grizzly Locker delivers 100% power to both wheels for maximum traction while still allowing for necessary disengagement during cornering. Its patented internal design features clutch teeth with a larger radius at the base, offering up to 350% greater strength than traditional back-cut designs. This robust architecture resists breakage caused by extreme shock-loading or axle failure, providing a significant reliability upgrade over standard lockers.

• Fits Ford 10.25-inch and 10.5-inch differential housings
• 35-spline configuration for heavy-duty axle applications
• Forged 8620 steel internals for superior durability
• Patented design reduces common mechanical locker failures
• Assembled in the USA
• Manufacturer Part Number: YGLF10.25-35

Fits select 1960-2014 Chevrolet, Dodge, Ford, GMC, Jeep, and Plymouth models with Dana 60 differentials (35-spline axles, 4.56 and numerically higher ratios).

The Yukon Gear Grizzly Locker (MPN: YGLD60-4-35) is a mechanical positive-locking differential engineered for maximum traction in the harshest environments. This locker delivers 100% power to both wheels for superior performance in rock crawling, off-road racing, and drag racing applications, yet its patented internal design allows for smooth disengagement when navigating turns on the trail or track.

Built to withstand extreme shock-loading, the Grizzly Locker features forged 8620 steel internals and a larger radius at the base of the inner clutch teeth. This innovation provides up to 350% more strength than traditional back-cut designs, significantly reducing the risk of catastrophic failure under load.

• Fits Dana Spicer 60 housings with 35-spline axles
• Engineered for 4.56 and numerically higher gear ratios
• Patented internal design improves component life and reduces failures
• Forged 8620 internals provide exceptional durability
• Mechanical positive-locking action ensures 100% power delivery
• Assembled in the USA
• Manufacturer Part Number: YGLD60-4-35

Fits select 1960-2014 Chevrolet, Dodge, Ford, GMC, Jeep, and Plymouth vehicles with a Dana 60 differential.

The Yukon Gear Grizzly Locker is a heavy-duty mechanical positive-locking differential engineered for the most demanding traction scenarios, including rock crawling, off-road racing, and drag racing. This unit delivers 100% power to both drive wheels while maintaining the ability to disengage for smoother navigation through turns. Constructed with high-strength 8620 steel internals, it replaces the factory spider gears to eliminate wheel spin and ensure maximum torque delivery.

The patented internal design significantly reduces common locker failures. The inner clutch teeth feature a larger radius at the base, providing up to 350% more strength than traditional back-cut designs. This increased surface area resists breakage during shock-loading or catastrophic axle failure, making it a reliable upgrade for high-torque applications.

• Manufacturer Part Number: YGLD60-3-35
• Differential Model: Dana Spicer 60
• Axle Spline Count: 35
• Gear Ratio Compatibility: 4.10 and down (numerically lower)
• Internals Material: 8620 Steel for superior durability
• Design: Patented internal geometry with larger radius clutch teeth
• Assembly: Proudly assembled in the USA

Fits select 1966-2017 Jeep, Ford, International, AMC, and Volvo vehicles including Wrangler, Cherokee, Bronco, and 240-series equipped with Dana 30 27-spline axles. This locker is compatible with 3.73 and numerically higher gear ratios.

The Yukon Gear Grizzly Locker (YGLD30-4-27) is a mechanical positive-locking differential designed for extreme traction in rock crawling, off-road racing, and drag racing applications. Engineered to provide 100% power to both tires simultaneously, it maintains the ability to disengage for smoother navigation during turns compared to a spool. This unit is built to withstand catastrophic axle failure through a patented internal design that features a larger radius at the base of the inner clutch teeth, offering significantly higher strength than standard back-cut designs.

• Fits Dana Spicer 30 axles with 27-spline shafts
• Compatible with 3.73 and up gear ratios
• Constructed with high-strength 8620 steel internals for maximum durability
• Patented internal design reduces common locker failures under shock-loading
• Assembled in the USA
• Manufacturer Part Number: YGLD30-4-27

Fits select 1993-2015 Toyota T100, Tacoma, Tundra, and Sequoia models equipped with 30-spline axles. This Yukon Dura Grip (MPN: YDGT100-30-1) is a positraction limited slip differential (LSD) designed to deliver smooth, reliable traction for various terrains. Built for high-torque applications and longevity, this unit is fully rebuildable and engineered to handle the demands of both street and off-road driving.

• Fits all gear ratios
• High-strength nodular case construction
• Forged 4320 chromoly spider gears for maximum durability
• Composite clutches for smooth engagement and heat resistance
• Heavy-duty 4-pinion design
• Fully rebuildable internal components
• Proudly assembled in the USA and extensively tested for reliability

The Yukon Dura Grip provides aggressive power transfer while maintaining enough slip for street driveability. By utilizing a high-strength nodular iron case and chromoly internals, it offers a significant strength upgrade over factory open differentials or worn OEM units.

Fits select 2003-2015 Nissan Frontier, Pathfinder, Titan, and Xterra models equipped with the M226 rear differential and 32-spline axles.

The Yukon Dura Grip is a premium positraction limited slip differential designed to provide smooth yet aggressive traction across diverse terrains. Built for durability and performance, this unit replaces factory open or worn-out differentials to ensure both wheels receive power when you need it most. Constructed with a high-strength nodular iron case and forged 4320 chromoly spider gears, it is engineered to withstand the stresses of off-road use and heavy-duty towing.

This LSD features internal composite clutches for predictable engagement and a fully rebuildable design that ensures a long service life. Whether you are maintaining a daily driver or building a trail-ready rig, the Dura Grip delivers the reliability and strength required for the Nissan M226 platform.

• Manufacturer Part Number: YDGNTITAN-32-1
• Fits Nissan M226 rear housings with 32-spline axles
• Compatible with all gear ratios
• Forged 4320 chromoly spider gears for ultimate tooth strength
• High-strength nodular iron case construction
• Composite clutches for smooth traction and quiet operation
• Fully rebuildable and proudly assembled in the USA

Fits select 1968-2006 Jeep and AMC models—including Wrangler, Cherokee, Grand Cherokee, and Eagle—equipped with a Dana 35 (M35) rear axle, 27-spline shafts, and a 3.54 or numerically higher gear ratio.

The Yukon Dura Grip is a clutch-style positraction limited slip differential (LSD) engineered to provide smooth yet aggressive traction. It delivers the performance and confidence required for a wide variety of terrains, from daily street driving to off-road trails. Built with a high-strength nodular iron case and forged 4320 chromoly spider gears, this unit is designed for maximum durability and is fully rebuildable for long-term service.

• High-strength nodular iron case for increased rigidity and housing stability
• Forged 4320 chromoly spider gears for ultimate tooth strength and durability
• Composite clutches provide smooth engagement and reliable performance
• Fully rebuildable design ensures the unit can be serviced for a lifetime of use
• Assembled in the USA

• Manufacturer Part Number: YDGM35-4-27-1
• Axle Model: Dana 35 (M35)
• Spline Count: 27
• Carrier Range: 3.54 and Numerically Higher (e.g., 3.73, 4.10, 4.56)
• Internal Design: Clutch-Style Limited Slip