Fits select 1970-2012 Chevrolet, Dodge, Ford, and GMC vehicles equipped with the Dana Spicer 70U rear differential.

The Yukon Gear Master Overhaul Kit (MPN YK D70-U) is a comprehensive solution designed for professional-grade differential rebuilds. Built around premium Timken bearings and races, this kit provides the precise tolerances and heat-treated durability required for heavy-duty applications. Whether you are addressing gear noise or performing a complete drivetrain restoration, Yukon ensures every necessary component is included to minimize downtime and prevent the need for additional trips to the parts counter.

This kit replaces worn OE components with high-quality seals and hardware, ensuring a leak-free installation and proper ring and pinion gear mesh. The inclusion of a complete shim kit allows for exact carrier and pinion adjustments, which is critical for long-term gear life and quiet operation.

• Manufacturer Part Number: YK D70-U
• Differential Compatibility: Dana Spicer 70U
• Bearing Brand: Timken bearings and races
• Included Hardware: Carrier bearings, carrier races, pinion bearings, and pinion races
• Installation Essentials: Pinion seal, complete shim kit, and ring gear bolts
• Additional Components: Pinion nut, oil baffles, slingers, and gasket
• Setup Tools: Thread locker, marking compound, and applicator brush

Fits 2017-2023 Ford F-250 and F-350 Super Duty trucks with Dana 60 front differentials.

The Yukon Gear & Axle Master Overhaul Kit (YK D60SR) is a comprehensive solution for technicians and DIYers performing a complete differential rebuild. This professional-grade kit replaces worn OE components with high-quality bearings and seals to restore smooth, reliable operation to your Ford Super Duty's front end. By including all necessary hardware and small parts in one package, Yukon ensures you have everything required to set pinion depth and backlash correctly without mid-job delays.

• Complete overhaul kit for 2017-2023 Ford F-250/F-350 Dana 60 front differentials
• Includes premium differential bearings and seals for maximum service life
• Comprehensive hardware: ring gear bolts, crush sleeve, pinion nut, and washers
• Essential small parts included: axle studs and thrust washers
• Engineered to withstand heavy-duty towing and off-road conditions
• Manufacturer Part Number: YK D60SR

Fits select 1960-2014 Chevrolet, Dodge, Ford, GMC, and Plymouth vehicles with Dana 60 or 61 front differentials. This Yukon Gear Master Overhaul Kit (YK D60-F) provides all the essential components required for a professional-grade differential rebuild or gear installation in a single, comprehensive package.

Yukon Gear uses premium Timken bearings and races to ensure optimal tolerances and long-term durability under heavy-duty use. The kit is engineered to replace worn factory components, restoring the structural integrity and smooth operation of your front axle assembly. It includes high-quality seals and a precision-matched shim kit to facilitate proper gear patterning and preload adjustments.

• Premium Timken bearings and races
• Carrier bearings and races
• Pinion bearings and races
• Pinion seal and axle seals
• Complete shim kit and ring gear bolts
• Pinion nut and crush sleeve
• Oil baffles and slingers
• Gasket, thread locker, and marking compound with brush
• Manufacturer Part Number: YK D60-F

Fits 1998-2005 Ford F-250, F-250 Super Duty, F-350 Super Duty, and Excursion models equipped with the Dana 50 straight axle front differential.

The Yukon Gear Master Overhaul Kit (MPN: YK D50-STRAIGHT) provides all the necessary premium components to complete a professional differential service or gear ratio change. Yukon simplifies the installation process by bundling high-quality Timken bearings and races with precise small parts, ensuring your Dana 50 axle maintains proper tolerances and long-term reliability. This comprehensive kit eliminates the need to source individual shims or hardware, providing a single-box solution for rebuilding your front end.

• Premium Timken bearings and races for reduced friction and extended service life
• Complete shim kit for precise setting of pinion depth and carrier backlash
• Application-specific pinion and axle seals to prevent fluid leaks
• High-strength ring gear bolts and pinion nut for secure assembly
• Includes installation essentials: marking compound, brush, thread locker, and silicone gasket maker

Kit Includes: Carrier bearings and races, pinion bearings and races, pinion seal, axle seals, complete shim kit, ring gear bolts, pinion nut, crush sleeve, oil baffles, slingers, thread locker, marking compound with brush, and silicone.

Fits select 2018-2024 Jeep Wrangler and Gladiator models with the Dana 44 220mm rear differential.

The Yukon Gear Master Overhaul Kit (YK D44JL-REAR) is a comprehensive solution designed for professional-grade differential service and gear installations. This kit includes all the necessary high-wear components and hardware to rebuild your rear axle with confidence, ensuring proper gear mesh and long-term reliability on and off the trail.

• Features premium Timken bearings and races for superior durability and reduced operating temperatures
• Includes high-quality pinion seals and essential small parts for a complete service
• Engineered with precise shim stacks and super shims to allow for fine adjustments to backlash and pinion depth
• Designed specifically for the Dana 44 220mm rear axle application
• Manufacturer Part Number: YK D44JL-REAR

Fits select 2018-2024 Jeep Wrangler and Gladiator models (including JL and JT platforms) equipped with the Dana 44 210mm front axle.

The Yukon Gear Master Overhaul Kit (YK D44JL-FRONT) provides all the necessary components for a complete differential rebuild or gear ratio change. This kit is built around industry-standard Timken bearings and races, ensuring the precise tolerances and durability required for off-road and daily driving conditions. Unlike basic kits, this master overhaul set includes specifically engineered shim stacks and super shims to allow for professional-grade pinion depth and carrier preload adjustments.

• Premium Timken bearings and races for reduced friction and extended service life
• Complete seal and small parts set to prevent leaks and contamination
• Precisely engineered shim stacks and super shims for exact mesh patterns
• Comprehensive component list designed for the Dana 44 210mm front differential
• Manufacturer Part Number: YK D44JL-FRONT

Fits select 1960-2006 Jeep, Chevrolet, Ford, GMC, International, and Isuzu vehicles with Dana Spicer 44 rear differentials. This Yukon Master Overhaul Kit is a comprehensive solution designed to provide every component required for a complete differential rebuild or gear installation.

Yukon Gear & Axle builds these kits to professional standards, utilizing premium Timken bearings and races for maximum longevity and precise tolerances. The kit includes all critical hardware and small parts, ensuring you have everything needed to achieve proper gear mesh and pinion depth without mid-project delays. Whether you are servicing a classic Jeep CJ or a Ford F-150, this kit provides the reliability and fitment accuracy required for a quiet, long-lasting gear set.

• Timken carrier bearings and races
• Timken pinion bearings and races
• Pinion seal and gasket
• Complete shim kit and crush sleeve
• Ring gear bolts and pinion nut
• Thread locker and marking compound with brush
• Manufacturer Part Number: YK D44-REAR

Fits select 2007-2017 Jeep Wrangler and Wrangler Unlimited models (Rubicon, Sahara, Sport, X, 70th/75th Anniversary) equipped with a Dana 44 rear differential.

The Yukon Gear Master Overhaul Kit (YK D44-JK-STD) is a comprehensive solution for professional differential service or gear installation. This kit is engineered to provide every component required to rebuild your rear axle housing, eliminating the need to source individual pieces. Yukon uses premium Timken bearings and races to ensure optimal rotational smoothness and longevity under the stress of off-road use or high-mileage commuting.

Every kit is the result of extensive application research, ensuring that all shims, seals, and fasteners meet the specific tolerances of the JK-generation Dana 44 housing. This ensures proper pinion depth and carrier backlash can be set accurately during assembly.

• Premium Timken carrier and pinion bearings and races
• High-quality pinion seal and new pinion nut
• Complete shim kit for precision adjustment
• New ring gear bolts and crush sleeve
• Oil baffles and slingers included
• Installation essentials: thread locker, marking compound with applicator brush, and differential gasket
• Manufacturer Part Number: YK D44-JK-STD

Fits 2007-2017 Jeep Wrangler and Wrangler Unlimited JK models with the Dana Spicer 44 Rubicon rear differential.

The Yukon Gear Master Overhaul Kit (MPN YK D44-JK-RUB) provides every component required for a professional-grade differential rebuild or gear ratio change. This kit is specifically engineered for the 2007-2017 JK Rubicon rear housing, ensuring all tolerances and fitments match factory specifications. At the core of this kit are premium Timken bearings and races, recognized for their superior longevity and heat dissipation compared to standard OE replacements.

Yukon performs extensive application research to ensure this kit is the most comprehensive on the market, eliminating the need to source individual small parts mid-installation. This complete package includes high-quality seals and a precision shim kit to help you achieve the perfect tooth contact pattern and pinion depth.

• Timken carrier bearings and races
• Timken pinion bearings and races
• Pinion seal and pinion nut
• Complete shim kit and crush sleeve
• Ring gear bolts and gasket
• Oil baffles and slingers
• Thread locker, marking compound, and applicator brush

Fits 2007-2017 Jeep Wrangler and Wrangler Unlimited models (JK) equipped with the Dana Spicer 44 reverse rotation front differential.

The Yukon Gear Master Overhaul Kit is a professional-grade solution for a complete differential rebuild or gear ratio change. Designed specifically for the JK Rubicon and related reverse rotation Dana 44 front axles, this kit eliminates the guesswork by providing every component required for a high-tolerance installation. Yukon utilizes premium Timken bearings and races to ensure optimal preload and long-term durability under heavy trail use.

• Timken Bearings: Includes industry-standard Timken bearings and races for the carrier and pinion.
• Comprehensive Hardware: Features a complete shim kit, ring gear bolts, and a new crush sleeve for precise mesh adjustment.
• Critical Seals: Includes high-quality pinion and axle seals to prevent fluid leaks and contaminant ingress.
• Installation Supplies: Ships with thread locker, marking compound with brush, and a gasket for a clean, leak-free finish.
• MPN: YK D44-JK-REV-RUB

Kit Includes: Carrier bearings and races, pinion bearings and races, pinion seal, axle seals, complete shim kit, ring gear bolts, pinion nut, crush sleeve, oil baffles and slingers, thread locker, marking compound, brush, and gasket.

The Yukon Gear Master Overhaul Kit (YK D44) is a comprehensive solution for rebuilding or re-gearing a Dana 44 standard rotation front differential. This kit is engineered to provide every component necessary for a professional-grade installation, utilizing premium Timken bearings and races to ensure long-term durability and precise gear mesh. By replacing worn OE components with this all-inclusive set, you restore the reliability and performance of your front drivetrain.

Fits select 1960-2002 Chevrolet, Dodge, Ford, GMC, International, and Jeep vehicles equipped with a 30-spline Dana 44 front axle.

• Timken carrier bearings and races
• Timken pinion bearings and races
• Pinion seal and axle seals
• Complete shim kit for precise depth and backlash adjustment
• Ring gear bolts and pinion nut
• Oil baffles and slingers
• Thread locker, marking compound with brush, and gasket
• Manufacturer Part Number: YK D44

Fits 2018-2024 Jeep Wrangler Sahara, Sport, Sport S, and Unlimited variants with the Dana 35 200mm rear differential.

The Yukon Gear Master Overhaul Kit provides every component required for a professional-grade differential service or gear installation. This kit eliminates the guesswork of sourcing individual components by providing application-specific hardware and premium bearings tailored for the Jeep Wrangler JL rear axle. At the core of the kit are Timken bearings and races, recognized as the industry standard for durability and reduced friction in high-load driveline environments.

Yukon includes meticulously engineered shim stacks and super shims, allowing for precise backlash and pinion depth adjustments. These components ensure proper gear tooth contact and quiet operation. Every kit is assembled following extensive research to confirm exact fitment and contains high-quality seals and small parts to restore your rear end to factory-plus specifications.

• Fits Dana 35 200mm Rear Differential
• Premium Timken bearings and races for extended service life
• Comprehensive shim kit including super shims for precise setup
• Includes all necessary seals and mounting hardware
• Manufacturer Part Number: YK D35JL-REAR

Fits 1996-2006 Jeep Cherokee, Grand Cherokee, and Wrangler models equipped with a standard rotation Dana 30 short pinion front differential.

The Yukon Gear Master Overhaul Kit (YK D30-TJ) provides all the necessary high-quality components to perform a professional differential rebuild or gear installation. This kit is built around premium Timken bearings and races, ensuring long-term durability and proper tolerances within your front axle housing. Yukon Gear conducts extensive research to ensure every kit is comprehensive, eliminating the need to source individual hardware mid-installation.

This is the most complete overhaul solution available, specifically designed to handle the load requirements of the Dana 30 front axle. Whether you are replacing worn factory components or upgrading your gear ratio, this kit includes everything from the precision shim kit to the marking compound required for setting a proper contact pattern.

• Carrier bearings and races (Timken)
• Pinion bearings and races (Timken)
• Pinion seal and axle seals
• Complete shim kit
• Ring gear bolts and pinion nut
• Crush sleeve, oil baffles, and slingers
• Thread locker, marking compound with brush, and gasket
• Manufacturer Part Number: YK D30-TJ

Fits 2007-2017 Jeep Wrangler and Wrangler Unlimited (JK) models equipped with Dana 30 reverse rotation front differentials.

The Yukon Gear Master Overhaul Kit is a comprehensive solution designed for complete differential rebuilds or gear ratio changes. This kit replaces worn factory components with premium hardware, centered around high-performance Timken bearings and races to ensure precise tolerances and long-term reliability. Every component in the YK D30-JK kit is selected to provide a complete installation experience, eliminating the need to source individual small parts or seals mid-job.

• Includes premium Timken bearings and races for superior durability
• Comprehensive hardware set for professional-grade installation
• Designed specifically for Dana 30 reverse rotation JK applications
• Manufacturer Part Number: YK D30-JK

Kit Includes: Carrier bearings and races, pinion bearings and races, pinion seal, axle seals, complete shim kit, ring gear bolts, pinion nut, crush sleeve, oil baffles and slingers, thread locker, marking compound with brush, and gasket.

Fits select 2011-2020 Ram 1500 and Ram 1500 Classic models with the Chrysler 9.25-inch ZF rear axle.

The Yukon Gear & Axle Master Overhaul Kit (MPN: YK C9.25ZF) is a professional-grade solution for a complete differential rebuild or gear ratio change. Yukon conducts extensive research to ensure these kits are the most comprehensive on the market, providing every component required to finish the job without interruption. This kit features premium Timken bearings and races, known for meeting strict OE tolerances and delivering long-term reliability under heavy loads.

• Premium Timken carrier bearings and races
• Pinion bearings and races
• High-quality pinion seal and axle gasket
• Complete shim kit for precise pinion depth and backlash adjustment
• Essential hardware: ring gear bolts, pinion nut, and crush sleeve
• Installation supplies: thread locker, marking compound, and applicator brush

Whether you are addressing bearing noise or installing a new ring and pinion set, this kit provides the high-quality seals and small parts needed for a professional, leak-free installation on Chrysler 9.25" ZF rear ends.

Fits select 2001-2010 Chrysler Aspen, Dodge Dakota, Durango, Ram 1500, Ram Van, and Mitsubishi Raider with the Chrysler 9.25" rear differential.

The Yukon Gear Master Overhaul Kit is a professional-grade solution for a complete differential rebuild or ring and pinion installation. This kit (MPN: YK C9.25-R-B) centers on premium Timken bearings and races, the industry standard for durability and precise tolerances under heavy axial and radial loads. By providing all necessary hardware in a single package, Yukon eliminates the downtime associated with sourcing individual small parts for your 9.25" rear end.

• Premium Timken carrier bearings and races
• Premium Timken pinion bearings and races
• High-quality pinion seal and gasket/silicone
• Complete shim kit for precise pinion depth and carrier backlash adjustment
• New ring gear bolts, pinion nut, and crush sleeve
• Installation essentials: thread locker, marking compound, and applicator brush

Fits select 2003-2018 Dodge and Ram 1500, 2500, and 3500 trucks equipped with the Chrysler 9.25-inch front differential.

The Yukon Gear Master Overhaul Kit (YK C9.25-F) is the most comprehensive solution for a professional differential rebuild. Yukon performs extensive application research to ensure every necessary component is included, eliminating the guesswork of sourcing individual parts. This kit features premium Timken bearings and races, which are the industry standard for maintaining strict tolerances and long-term reliability under heavy load.

• Premium Timken carrier bearings and races
• Timken pinion bearings and races
• Pinion seal and axle seals
• Complete shim kit for precise ring and pinion setup
• Ring gear bolts and pinion nut
• Crush sleeve, oil baffles, and slingers
• Installation essentials: thread locker, marking compound with brush, and silicone

Fits select 2018-2026 Chevrolet Silverado 2500 HD/3500 HD, GMC Sierra 2500 HD/3500 HD, and Ram 2500/3500 with the AAM 11.5" rear differential.

The Yukon Gear Master Overhaul Kit is the most comprehensive solution for a professional differential rebuild or gear installation. Engineered to provide all the necessary components in a single package, this kit eliminates the guesswork and downtime of sourcing individual parts. Featuring premium Timken and Koyo bearings and races, this kit ensures proper tolerances and long-term durability under heavy-duty towing and hauling conditions.

• Technical Note: Head bearing measures 2.267 in. inside diameter.
• Premium Components: Includes Timken/Koyo bearings and races for superior load-carrying capacity.
• Complete Installation Hardware: Comes with a comprehensive shim kit, pinion seal, and ring gear bolts to achieve the perfect gear pattern and preload.
• Included in Kit: Carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve, thread locker, marking compound with brush, and gasket.
• Manufacturer Part Number: YK AAM11.5-E

Fits select 1972-2002 Cadillac, Chevrolet, and GMC vehicles with the GM 8.5-inch rear differential using 5/16-inch cover bolts.

The Yukon Gear Hardcore Differential Cover is engineered to protect your lockers, gears, and axles from heavy impacts during extreme off-road use. Cast from thick-walled nodular iron, this cover (MPN: YHCC-GM8.5-S) significantly increases the structural rigidity of the differential housing. This added strength reduces deflection during high-torque situations, ensuring internal components stay aligned under severe loads.

Beyond impact protection, the internal geometry is designed with contoured surfaces that aid in rapid oil circulation for more efficient cooling. This bolt-on upgrade features a durable black powder coat finish and comes complete with high-strength steel fasteners for a reliable installation.

• Manufactured from high-strength nodular iron for maximum impact resistance
• Contoured inner surfaces circulate gear oil rapidly for improved cooling
• Thick-walled construction promotes housing rigidity and reduces deflection
• Durable black powder coat finish with a contrasting stainless-steel accent plate
• Compatible with both standard and reverse rotation GM 8.5-inch differentials
• Includes high-strength steel 5/16-inch fasteners
• Part Number: YHCC-GM8.5-S