Fits select 1966-2019 Ford Bronco and Jeep Cherokee, CJ5, CJ7, Grand Cherokee, Scrambler, and Wrangler models with Dana 30 or Super 30 differentials.

The Yukon Gear Hardcore Diff Cover (YHCC-D30) is engineered to protect lockers, gears, and axle components from severe impact during off-road use. Cast from thick-walled nodular iron, this cover significantly increases differential housing rigidity. This added strength reduces housing deflection under high-torque loads, helping to maintain proper gear mesh and prevent premature wear or failure of internal components.

Designed for both standard and reverse rotation differentials, the cover features contoured internal surfaces that facilitate more rapid oil circulation for improved cooling. The unit is finished in a durable black powder coat to resist corrosion and includes high-strength steel fasteners for a direct bolt-on installation.

• Thick-walled nodular iron construction for maximum impact resistance
• Increases structural rigidity to reduce housing deflection
• Contoured inner profile promotes efficient oil flow and cooling
• Durable black powder coat finish
• Includes contrasting stainless-steel accent plate and high-strength fasteners
• Compatible with standard and reverse rotation Dana 30/Super 30 housings
• Manufacturer Part Number: YHCC-D30

Fits select 1966-2019 Chrysler, Dodge, Ram, Plymouth, and Mitsubishi vehicles equipped with the Chrysler 9.25in rear differential (5.9L).

Yukon Gear Hardcore differential covers are engineered from high-strength nodular iron to provide a robust shield for your lockers, gears, and axles against trail impacts and debris. Beyond impact protection, the thick-walled construction significantly increases the structural rigidity of the differential housing. This added stiffness reduces case deflection during high-torque situations, ensuring internal components remain properly aligned under heavy loads.

• Thick-walled nodular iron construction for maximum housing rigidity and impact resistance
• Contoured inner surfaces designed to circulate oil more rapidly for improved cooling
• Durable black powder coat finish provides superior corrosion resistance
• Includes high-strength steel fasteners for a secure bolt-on installation
• Features a contrasting stainless-steel accent plate for a professional finish
• Compatible with both standard and reverse rotation differentials
• Manufacturer Part Number: YHCC-C9.25

Fits select 2001-2024 Chevrolet Silverado 2500/3500, GMC Sierra 2500/3500, Dodge Ram, and Ram 2500/3500 trucks with 11.5" or 11.8" differentials.

The Yukon Gear Hardcore Differential Cover (YHCC-AAM11.5) is engineered to protect vital internal components from the most extreme off-road impacts. Unlike thin factory stamped-steel covers, this unit is cast from thick-walled, high-strength nodular steel to provide maximum impact resistance for your lockers, gears, and axles. Beyond protection, the heavy-duty construction increases the structural rigidity of the differential housing, reducing gear deflection during high-torque situations.

This cover is designed for both standard and reverse rotation differentials and features contoured inner surfaces that circulate oil more rapidly for improved cooling under heavy loads. The assembly is finished in a durable black powder coat and includes high-strength steel fasteners and a contrasting stainless-steel accent plate for a professional, corrosion-resistant finish.

• Fits 11.5-inch and 11.8-inch GM, Dodge, and Ram differentials
• Cast from high-strength nodular steel for maximum impact protection
• Increases differential housing rigidity to reduce deflection under load
• Contoured interior surfaces optimize oil circulation and facilitate faster cooling
• Durable black powder coat finish with stainless-steel accent plate
• Compatible with both standard and reverse rotation differentials
• Complete with high-strength fasteners for a direct bolt-on installation
• Manufacturer Part Number: YHCC-AAM11.5

Fits select 1971-1991 Ford Bronco and Chevrolet/GMC K-Series and V-Series trucks and SUVs (19-spline).

Yukon Gear Hardcore Locking Hubs are engineered for extreme off-road reliability and maximum strength. Built with all-steel construction and chromoly internals, these hubs are designed to withstand high-torque applications without disengaging. Unlike standard hubs, the Hardcore series defaults to the locked position to ensure consistent traction when you need it most. The low-profile bezel design minimizes the risk of impact with rocks and obstacles, protecting your drivetrain on technical trails.

Engagement is fast and precise, requiring only a 1/3 turn of the all-steel bezel to switch between two-wheel and four-wheel drive. The internal locking gears feature a proprietary coating to reduce friction, ensuring a long service life and smooth operation in harsh environments.

• Fits GM 8.5-inch front and Dana 44 axles with 19-spline shafts
• All-steel construction with high-strength chromoly internals
• Low-profile bezel design reduces damage from trail obstacles
• Quick 1/3 turn engagement mechanism
• Default-to-locked design for high-torque security
• Friction-reducing proprietary gear coating
• Manufacturer Part Number: YHC70007

Fits select 1969-1992 Chevrolet Blazer, K5, K10, K20; GMC K15, K25; and Ford Bronco, F-150, F-250 models with Dana 44 front axles.

Yukon Gear Hardcore Locking Hubs are engineered for extreme off-road durability, utilizing chromoly internals and all-steel construction to withstand high-torque loads. Unlike standard hubs, these units feature a failsafe design that defaults to the locked position to ensure you remain in four-wheel drive when needed. The low-profile bezel design minimizes the risk of impact with rocks or trail obstacles, while a proprietary coating on the locking gears reduces friction for a smoother, longer service life.

• 19-spline internal design for Dana 44 applications
• Chromoly steel internals provide superior strength over factory cast components
• Quick 1/3 turn engagement for rapid transitions between 2WD and 4WD
• Low-profile all-steel bezel reduces trail-damage risk
• Failsafe default-to-locked design prevents accidental disengagement
• Manufacturer Part Number: YHC70006

Yukon Gear Hardcore Locking Hubs (YHC70005) provide a robust manual lockout solution for Dana Spicer 30 and 44 front axles equipped with 30-spline outer shafts. Engineered for extreme off-road use and rock crawling, these hubs utilize all-steel construction and high-strength chromoly internals to handle high-torque loads without disengaging or slipping.

The design features a low-profile bezel to minimize the risk of impact against rocks and trail obstacles. A quick 1/3 turn of the dial facilitates rapid engagement between two-wheel and four-wheel drive, while the internal mechanism is designed to default to the locked position under load for maximum reliability. A proprietary coating on the locking gears reduces friction, ensuring smooth operation and a long service life in harsh environments.

• Fits Dana Spicer 30 and 44 front axles with 30-spline shafts
• All-steel construction for maximum durability and impact resistance
• Chromoly internals for increased strength and torque capacity
• Low-profile bezel design helps prevent hang-ups and trail damage
• Short 1/3 turn engagement for quick 4WD activation
• Proprietary gear coating reduces friction and wear
• Includes one pair of locking hubs
• Manufacturer Part Number: YHC70005

Fits select 1978-1997 Ford F-250/F-350, 1979-1988 GM K30/V30/K3500/V3500, and 1979-1993 Dodge W200/W250/W300/W350 one-ton fronts with Dana Spicer 60 axles.

Yukon Hardcore Locking Hubs (YHC70001) are engineered for extreme off-road environments where standard hubs fail. Built with high-strength chromoly internals and all-steel construction, these 35-spline hubs are designed to withstand high-torque applications without disengaging. Unlike standard hubs that can pop out of gear under stress, the Hardcore series defaults to the locked position for reliable 4WD performance when you need it most.

The low-profile bezel design minimizes the risk of impact with rocks and obstacles, while a proprietary coating on the locking gears reduces friction for a long service life. Engagement is fast and precise, requiring only a 1/3 turn of the all-steel bezel to switch between 2WD and 4WD.

• Fits Dana Spicer 60 front axles with 35-spline shafts
• All-steel construction with chromoly internals for maximum durability
• Fast 1/3 turn engagement/disengagement
• Default-to-locked mechanism ensures positive engagement under load
• Low-profile bezel reduces catch points on technical terrain
• Proprietary friction-reducing gear coating
• MPN: YHC70001

Fits select 1960-1993 Chevrolet, GMC, Ford, Dodge, Jeep, and International models with a Dana Spicer 44 front axle and 19 spline outer stubs.

Yukon Hardcore Drive Flange Kits are engineered for maximum strength in extreme off-road environments. Designed to replace standard internal manual locking hubs, this kit provides a permanent, solid connection between the axle shaft and the wheel hub, eliminating the weak points associated with traditional locking mechanisms. These flanges are ideal for high-torque applications where drivetrain reliability is critical.

The kit features heavy-duty drive flanges and non-engraved caps for a clean, understated appearance on the hub face. Each component is manufactured to precise tolerances to ensure a secure fit and long-term durability against trail abuse.

• Replaces internal manual locking hubs with high-strength drive flanges
• Compatible with Dana Spicer 44 front axles
• Fits 19 spline outer axle stubs
• Includes two drive flanges and two non-engraved caps
• All necessary mounting hardware included
• Manufacturer Part Number: YHC50008

Fits select 1971-2015 Chevrolet, Dodge, Ford, and GMC trucks equipped with a Dana Spicer 60 front axle and 35-spline outer stubs.

The Yukon Gear Hardcore Drive Flange Kit (MPN: YHC50005) is engineered for serious off-road use where traditional manual locking hubs are the weak link. By replacing internal manual hubs with these high-strength drive flanges, you ensure permanent engagement and maximum torque transfer to your front wheels. This kit is a critical upgrade for rock crawling and heavy-duty trail applications where drivetrain reliability is paramount.

• Fits Dana Spicer 60 front axles with 35-spline outer axle shafts
• Includes two high-strength drive flanges
• Includes two Yukon engraved caps for a finished, professional look
• Complete with all necessary installation hardware
• Eliminates the failure points of mechanical locking hub assemblies
• Manufacturer Part Number: YHC50005

Fits select 1971-2015 Chevrolet, GMC, Dodge, and Ford 4WD trucks equipped with a Dana Spicer 60 front axle and 30-spline outer axles.

The Yukon Hardcore Drive Flange Kit is engineered for extreme off-road applications where manual locking hubs are the weak link in the drivetrain. Designed to replace internal manual locking hubs, this kit provides a permanent, fixed connection between the outer stub axle and the wheel hub. This eliminates the risk of hub failure or unintentional disengagement during high-torque scenarios such as rock crawling or competition use.

Constructed for maximum durability, these flanges ensure your drivetrain remains fortified against the stresses of oversized tires and harsh terrain. This specific kit features non-engraved caps for a clean, understated look at the wheel hub.

• Manufacturer Part Number: YHC50004
• Axle Fitment: Dana Spicer 60
• Spline Count: 30-Spline Outer Stubs
• Cap Finish: Non-Engraved
• Included Hardware: Two (2) drive flanges, two (2) caps, and all necessary mounting hardware

Fits select 1971-2015 Chevrolet, Dodge, Ford, and GMC trucks equipped with a Dana Spicer 60 front axle and 30-spline outer stubs.

The Yukon Gear Hardcore Drive Flange Kit (YHC50003) is engineered for extreme off-road environments where traditional manual locking hubs often fail. By replacing internal locking mechanisms with solid drive flanges, this kit provides a fail-safe connection that ensures constant engagement and maximum power delivery to the wheels. It is the ultimate upgrade for rock crawlers and heavy-duty trail rigs that demand absolute drivetrain reliability.

• Increased Strength: Eliminates moving internal hub components to provide a more robust connection for high-torque applications.
• Solid Engagement: Perfect for dedicated off-road vehicles that require permanent front-axle engagement.
• Premium Aesthetics: Features signature Yukon engraved caps for a clean, professional finish.
• Technical Spec: Compatible with Dana Spicer 60 front axles featuring 30-spline outer axle shafts.

Kit Includes: (2) Drive Flanges, (2) Yukon Engraved Caps, and all required installation hardware.

Fits select 1968-2006 American Motors and Jeep vehicles including Wrangler, Cherokee, and Grand Cherokee with AMC Model 35 rear axles, 27-spline shafts, and 3.54 or higher gear ratios.

The Yukon Gear Grizzly Locker is a mechanical positive-locking differential designed for extreme traction in rock crawling, off-road racing, and trail use. This unit provides 100% power to both tires simultaneously while maintaining the ability to disengage for smoother navigation through turns. Engineered to withstand catastrophic axle failure and heavy shock-loading, it features a patented internal design with inner clutch teeth that utilize a larger radius at the base, offering up to 350% greater strength than traditional back-cut designs.

• Fits AMC Model 35 (Dana 35) axles with 27-spline shafts
• Compatible with 3.54 and numerically higher gear ratios
• Forged 8620 steel internals for maximum component lifespan
• Patented design reduces common mechanical locker failures
• Assembled in the USA
• Manufacturer Part Number: YGLM35-4-27

Fits select 1980-2014 Buick, Cadillac, Chevrolet, and GMC vehicles with GM 8.5" or 8.6" differentials and 30-spline axles.

The Yukon Grizzly Locker (YGLGM8.5-3-30) is a high-strength mechanical positive-locking differential designed for extreme traction in off-road racing, drag racing, and technical trail environments. This locker provides 100% power to both tires under load while maintaining the ability to disengage during turns for streetability. Engineered to handle the shock-loading of catastrophic axle failures, it features a patented internal design that utilizes a larger radius at the base of the inner clutch teeth, offering significantly higher strength compared to traditional back-cut designs.

• MPN: YGLGM8.5-3-30
• Axle Compatibility: GM 8.5-inch and 8.6-inch
• Spline Count: 30
• Gear Ratio: 2.73 and up numerically
• Materials: 8620 steel internals for maximum durability
• Design: Patented internal mechanism reduces common locker failures
• Manufacturing: Assembled in the USA