Fits select 1979-1997 Chevrolet and GMC C1500, C2500, K1500, K2500, Suburban, Yukon, and G-series/Express vans with the GM 9.5" rear differential.

The USA Standard Gear Master Overhaul Kit provides a comprehensive solution for a professional differential rebuild or gear ratio change. This kit is engineered to provide every component required to properly set pinion depth, preload, and backlash. Featuring high-quality Koyo bearings and races, this kit ensures optimal tolerances and long-term durability for high-torque applications.

• Koyo bearings and races for reliable performance and fitment
• Complete shim kit for precise carrier and pinion adjustment
• Includes pinion seal, pinion nut, and crush sleeve
• Includes ring gear bolts and differential gasket
• Supplied with thread locker, marking compound, and applicator brush
• Manufacturer Part Number: ZK GM9.5-A

Fits select 1964-1972 Buick, Oldsmobile, and Pontiac models with the 8.2-inch differential.

The USA Standard Gear Master Overhaul Kit (ZK GM8.2BOP) provides all the specialized components required for a professional-grade differential rebuild or gear installation. This comprehensive kit streamlines the service process by bundling premium Koyo/Timken bearings with high-quality seals and hardware, ensuring your classic GM rear end is restored to factory tolerances and long-term reliability.

• Premium Bearings: Includes high-quality Koyo/Timken bearings and races for superior load capacity and reduced friction.
• Comprehensive Hardware: Features a complete shim kit and ring gear bolts to facilitate precise backlash and pinion depth adjustments.
• Total Solution: Eliminates downtime by providing every necessary seal and small part, from the crush sleeve to the marking compound.

Kit Includes: 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.

Fits select 1964-1972 Buick, Chevrolet, and Pontiac vehicles with the GM 12-bolt passenger car differential. This USA Standard Gear Master Overhaul Kit provides a comprehensive solution for differential rebuilds, ensuring you have all the critical components required to restore factory-spec performance and quiet operation.

Built around premium Koyo/Timken bearings and races, the ZK GM12P kit is designed for technicians and enthusiasts who require tight tolerances and long-term durability. By replacing worn carrier and pinion bearings along with essential seals and hardware, this kit eliminates the guesswork of sourcing individual parts and ensures a precise setup for your ring and pinion gears.

• Fits GM 12-bolt passenger car differentials
• Includes premium Koyo bearings and races
• Features a complete shim kit for precise carrier and pinion depth adjustment
• Supplied with all necessary assembly hardware and seals
• Manufacturer Part Number: ZK GM12P

Kit Includes: 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.

Fits select 2011-2020 Ford E-150, F-150, and Transit-150/250/350/350 HD models with the 9.75-inch rear differential.

The USA Standard Gear Master Overhaul Kit (ZK F9.75-D) provides a complete solution for rebuilding your vehicle's differential. Each kit is engineered to restore factory-quiet operation and reliability by replacing worn internals with high-specification components. This kit features premium Koyo bearings and races, known for their precise tolerances and durability under heavy load conditions.

This comprehensive package includes all the critical hardware required for a professional-grade installation, from the shim kit for proper backlash adjustment to the thread locker and marking compound needed for gear pattern verification. By consolidating all necessary parts into one kit, USA Standard Gear ensures your differential service is completed with components designed to work together.

• Manufacturer Part Number: ZK F9.75-D
• Fits Ford 9.75-inch differential housings
• Uses high-quality Koyo bearings and races
• Includes carrier bearings and races
• Includes pinion bearings and races
• Includes pinion seal and pinion nut
• Complete shim kit and crush sleeve included
• Includes ring gear bolts and gasket
• Includes thread locker, marking compound, and applicator brush

Fits select 1957-1988 Ford, Lincoln, and Mercury vehicles equipped with a Ford 9-inch differential using LM603011 carrier races. This USA Standard Gear Master Overhaul Kit (ZK F9-C) provides a comprehensive solution for a professional differential rebuild, consolidating all critical components into a single package to ensure a precise setup and reliable service life.

Built around high-quality Koyo bearings and races, this kit is designed to restore factory-spec tolerances and performance. Whether you are replacing a worn gear set or performing a routine maintenance overhaul, this kit eliminates the guesswork by including the specific hardware and shims required for your differential housing.

• Fits Ford 9" differentials specifically using LM603011 carrier races
• Premium Koyo bearings and races for exceptional durability and heat management
• Complete shim kit for precise pinion depth and backlash adjustment
• Includes all necessary seals, gaskets, and mounting hardware
• Manufacturer Part Number: ZK F9-C

Kit Includes: 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.

Fits select 1955-1987 Ford, Lincoln, and Mercury vehicles equipped with a Ford 9-inch rear differential.

The USA Standard Gear Master Overhaul Kit provides a comprehensive solution for a professional-grade differential rebuild, consolidating all necessary components under one part number. This kit is engineered specifically for Ford 9" applications utilizing the LM501310 carrier race. To ensure high-performance reliability and precise tolerances, USA Standard sources premium Koyo bearings and races for this assembly.

• Specifically for Ford 9-inch differentials with LM501310 carrier races
• Uses premium Koyo bearings and races for durability and quiet operation
• Includes carrier bearings and races, pinion bearings and races, and pilot bearing
• Complete shim kit and marking compound with brush for proper gear patterning
• Includes pinion seal, ring gear bolts, pinion nut, crush sleeve, and gasket
• Thread locker included for secure installation
• Manufacturer Part Number: ZK F9-B

Fits select 2015-2023 Ford F-150 and Mustang models with the 8.8-inch rear differential.

The USA Standard Gear Master Overhaul Kit (ZK F8.8-D) provides a comprehensive solution for a complete differential rebuild. Instead of sourcing individual components, this kit bundles all necessary hardware and consumables into a single package to ensure a successful installation and long-term reliability. Every component is selected to meet or exceed the requirements for high-load applications in both the F-150 chassis and the independent rear suspension (IRS) of the S550/S650 Mustang.

• Complete Rebuild Components: Includes pinion bearings, carrier bearings, pinion seal, crush sleeve, gear marking compound, and brush.
• Precise Fitment: Specifically engineered for the 2015 and up Ford 8.8-inch rear differential variant.
• Efficiency: Simplifies the ordering process by providing everything required for a professional differential service in one box.
• Quality Assurance: High-quality bearings and seals designed to withstand the torque demands of modern Ford engines.
• Part Number: ZK F8.8-D

Fits select 2009-2014 Ford F-150 and Mustang models with the Ford 8.8-inch rear end.

The USA Standard Gear Master Overhaul Kit (ZK F8.8-B) is a comprehensive solution for technicians and enthusiasts performing a complete differential rebuild. This kit eliminates the need to source individual components by providing premium Koyo bearings and all the necessary hardware required to set gear mesh and preload correctly. Whether you are addressing bearing noise or installing a new ring and pinion set, this kit ensures a professional-grade installation with components designed for durability and precise tolerances.

• Premium Koyo carrier bearings and races
• Koyo pinion bearings and races
• High-quality pinion seal and pinion nut
• Complete shim kit for accurate depth and backlash adjustment
• Heavy-duty ring gear bolts and crush sleeve
• Installation essentials: Thread locker, marking compound with brush, and gasket
• Manufacturer Part Number: ZK F8.8-B

Fits select 2011-2019 Ford E-250, E-350 Super Duty, F-150, F-250 Super Duty, and F-350 Super Duty models with 10.5-inch differential housings.

The USA Standard Gear Master Overhaul Kit (ZK F10.5-D) provides a comprehensive solution for a professional differential rebuild. This kit is specifically engineered for Ford 10.5-inch housings utilizing the OEM ring and pinion set. By bundling all necessary high-grade components into a single package, it ensures you have the exact parts required for a precise installation, reducing downtime and sourcing errors.

This kit features premium Koyo bearings and races, trusted for their tight tolerances and durability in high-load truck applications. From the carrier bearings to the marking compound, every component is selected to provide a quiet, reliable gear setup that meets or exceeds factory performance.

• Includes Koyo carrier bearings and races
• Includes Koyo pinion bearings and races
• Pinion seal, pinion nut, and crush sleeve
• Complete shim kit for precise gear pattern adjustment
• Ring gear bolts and high-quality gasket
• Thread locker and marking compound with brush
• Manufacturer Part Number: ZK F10.5-D

Fits select 1999-2007 Ford E-250, E-350, Excursion, F-150, F-250, and F-350 models with the 10.5-inch rear differential.

The USA Standard Gear Master Overhaul Kit (ZK F10.5-A) is a comprehensive solution for a professional-grade differential rebuild. This kit streamlines the repair process by grouping all essential components under a single part number, ensuring component compatibility and reducing downtime. Each kit features premium Koyo bearings and races, recognized for their precision tolerances and durability in high-load truck applications.

• Carrier bearings and races
• Pinion bearings and races
• Pinion seal and crush sleeve
• Complete shim kit for precise adjustment
• Ring gear bolts and pinion nut
• Thread locker and gasket
• Marking compound with application brush
• Manufacturer Part Number: ZK F10.5-A

Designed to restore factory-quiet operation and proper gear alignment, this master overhaul kit provides the high-quality hardware required for a successful ring and pinion installation or high-mileage service.

Fits select 1988-2010 Chevrolet and GMC K-Series, Silverado, Sierra, Suburban, and Avalanche models with the GM 9.25-inch Independent Front Suspension (IFS) differential.

The Yukon Gear Master Overhaul Kit (MPN YK GM9.25IFS-A) provides all the specialized components required for a professional differential rebuild or gear ratio change. This kit is centered around premium Timken bearings and races, ensuring the tight tolerances and long-term durability required for heavy-duty truck and SUV applications. Yukon conducts extensive research to ensure every shim, seal, and hardware piece is application-specific, eliminating the need for mid-job parts runs.

• Premium Timken bearings and races for carrier and pinion
• Pinion seal and axle seals
• Complete shim kit for precise gear pattern adjustment
• New ring gear bolts and pinion nut
• Crush sleeve and thread locker
• Marking compound with application brush
• High-quality silicone sealant

Fits select 2007-2018 Cadillac Escalade, Chevrolet Silverado 1500, Suburban, Tahoe, GMC Sierra 1500, and Yukon models with the GM 8.25" Independent Front Suspension (IFS) differential.

The Yukon Gear Master Overhaul Kit is a comprehensive solution designed to provide every essential component for a complete differential rebuild. Engineered for precision and longevity, this kit eliminates guesswork by including high-quality wear items required to restore factory-spec performance and reliability to your front axle assembly.

• Utilizes Timken bearings and races for superior strength and extended service life.
• Includes high-quality seals and small parts for a leak-free, professional installation.
• Complete package includes side bearings and seals to ensure a thorough overhaul.
• Extensively researched components tailored specifically for the GM 8.25-inch IFS application.
• Manufacturer Part Number: YK GM8.25IFS-C

Yukon Master Overhaul Kits are built to the highest standards, offering a tailor-made fitment that ensures accuracy during the installation process for both daily drivers and heavy-duty applications.

Fits select 1966-2001 Jeep Cherokee, Wrangler, CJ, AMC Eagle, Ford Bronco, and International Scout models with a standard rotation Dana 30 front differential.

The Yukon Gear & Axle Master Overhaul Kit (YK D30-F) provides all the necessary components for a professional differential rebuild or gear installation. This comprehensive kit is designed around premium Timken bearings and races, ensuring high-load capacity and long-term reliability for your front axle. By including every seal, shim, and fastener required for the job, Yukon eliminates the need for mid-installation parts runs and ensures all tolerances can be set to factory or performance specifications.

• Premium Timken carrier and pinion bearings with matching races
• High-quality pinion and axle seals
• Comprehensive shim kit for precise carrier and pinion depth adjustment
• Ring gear bolts and pinion nut
• Oil baffles and slingers
• Gasket and thread locker included
• Gear marking compound with applicator brush
• Manufacturer Part Number: YK D30-F

Fits select 1968-2006 American Motors and Jeep vehicles with the Model 35 rear differential, including AMX, Cherokee, Comanche, Grand Cherokee, and Wrangler models.

The Yukon Gear YK M35 Master Overhaul Kit provides all the necessary components for a professional differential rebuild or gear ratio change. This comprehensive kit is anchored by premium Timken bearings and races, ensuring precise tolerances and long-term durability under load. Designed for the AMC Model 35 housing, it includes everything from the pinion seal to the marking compound, eliminating the need to source individual small parts mid-installation.

• Timken carrier bearings and races
• Timken pinion bearings and races
• Pinion seal and pinion nut
• Complete shim kit for precise gear setup
• Ring gear bolts and crush sleeve
• Gasket, thread locker, and marking compound with brush
• Manufacturer Part Number: YK M35

Fits Dana Spicer S110, S111, S130, and S132 differentials.

The Yukon Gear Master Overhaul Kit (YK DS110) is a comprehensive solution designed for professional ring and pinion installations and complete differential rebuilds. This kit eliminates the guesswork of sourcing individual components by providing application-specific hardware required to restore factory tolerances and ensure long-term reliability under heavy-duty conditions.

Yukon utilizes industry-standard Timken bearings and races, known for their precise clearances and durability. Each kit is the result of extensive research to ensure that every seal, shim, and small part is correct for the specific Dana Spicer housing. Whether you are performing a gear ratio change or a routine maintenance overhaul, this kit provides the high-grade materials necessary for a successful setup.

• Includes premium Timken bearings and races
• High-quality pinion seals and small parts
• Application-specific shim kits for precise gear patterning
• All necessary hardware for a complete differential service
• Manufacturer Part Number: YK DS110

Fits select 1954-2014 Chevrolet, Dodge, Ford, GMC, and Plymouth models with a Dana 60 or Dana 61 rear differential.

The Yukon Gear Master Overhaul Kit (MPN: YK D60-R) is a comprehensive solution designed for complete differential rebuilds. This kit features premium Timken bearings and races, which are selected for their tight tolerances and durability in high-torque applications. Yukon performs extensive research to ensure every kit includes the specific shims, seals, and hardware required for a successful installation and proper gear pattern alignment.

• Premium Timken carrier and pinion bearings and races
• Complete shim kit for precise pinion depth and carrier preload adjustment
• High-quality pinion seal, gasket, and oil baffles/slingers
• New ring gear bolts and pinion nut for secure assembly
• Includes installation essentials: thread locker, marking compound, and brush

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