Fits select 2014-2025 Cadillac Escalade, Chevrolet Silverado, Suburban, Tahoe, Express, and GMC Sierra, Yukon, and Savana models with the GM 9.5" 12-bolt rear differential cover.

The Yukon Gear Master Overhaul Kit is the most comprehensive solution for rebuilding or servicing your GM 9.5-inch differential. This kit is engineered to provide every necessary component for a complete professional-grade installation, ensuring you have the correct tolerances and high-durability seals required for long-term gear life. Yukon utilizes premium Timken bearings and races to reduce friction and heat within the housing, paired with high-quality seals and hardware that meet or exceed OE specifications.

• Includes high-performance Timken bearings and races
• Pinion seal and carrier bearings
• Complete shim kit for precise gear pattern adjustment
• New ring gear bolts and pinion nut
• Crush sleeve and gasket
• Installation essentials: thread locker, marking compound, and applicator brush
• Manufacturer Part Number: YK GM9.5-12B

Fits select 2009-2019 Cadillac Escalade, Chevrolet Silverado/Tahoe/Suburban, GMC Sierra/Yukon, Hummer H3, and Saab 9-7x with the GM 8.6-inch rear differential.

The Yukon Gear Master Overhaul Kit (YK GM8.6-B) is the most comprehensive solution for technicians and DIYers performing a differential rebuild or gear ratio change. This kit is engineered to provide every component necessary to complete the job correctly the first time, eliminating downtime caused by missing small parts. Yukon utilizes premium Timken bearings and races to ensure optimal tolerances, reduced heat, and long-term durability under load.

This kit includes all essential hardware for a professional installation, featuring high-quality seals and a complete shim kit for precise carrier and pinion depth adjustment. Whether you are addressing a noisy rear end or installing a new ring and pinion set, this master kit provides the reliability required for GM 8.6" applications.

• Manufacturer Part Number: YK GM8.6-B
• Bearings: Premium Timken carrier and pinion bearings and races
• Pinion Components: Pinion seal, pinion nut, and crush sleeve
• Installation Hardware: Ring gear bolts, thread locker, and marking compound with brush
• Adjustment Tools: Complete shim kit for precise setup
• Sealing: High-quality differential gasket included

Fits select 1999-2008 Buick, Cadillac, Chevrolet, and GMC vehicles with the GM 8.6-inch rear differential. This Yukon Master Overhaul Kit provides every necessary component for a complete differential service, gear swap, or rebuild, ensuring professional-grade reliability and proper gear mesh.

Assembled with premium Timken bearings and races, this kit is engineered for longevity and precise tolerances. Yukon performs extensive application research to ensure this comprehensive kit eliminates downtime by including specific hardware often overlooked in lesser kits, such as ring gear bolts and a complete shim set for fine-tuning the backlash and carrier preload.

• Manufacturer Part Number: YK GM8.6-A
• Carrier bearings and races (Timken)
• Pinion bearings and races (Timken)
• High-quality pinion seal and gasket
• Complete shim kit for precision adjustment
• Ring gear bolts and pinion nut
• Crush sleeve and thread locker
• Marking compound with applicator brush

Fits select 1970-2003 Buick, Cadillac, Chevrolet, GMC, Oldsmobile, and Pontiac vehicles equipped with a GM 8.5-inch rear differential and aftermarket Positraction.

The Yukon Gear Master Overhaul Kit (MPN YK GM8.5-HD) is a professional-grade solution for technicians and DIY builders performing a complete differential rebuild or gear ratio change. This kit is specifically designed for applications utilizing an aftermarket Positraction unit in the GM 8.5" housing, ensuring proper fitment where standard OE-spec kits may differ. Yukon utilizes premium Timken bearings and races to maintain precise tolerances and long-term durability under heavy load.

• Manufacturer Part Number: YK GM8.5-HD
• Premium Components: Includes industry-leading Timken bearings and races for the carrier and pinion.
• Complete Installation Hardware: Comes with a comprehensive shim kit, high-quality pinion seal, ring gear bolts, pinion nut, and crush sleeve.
• Setup Essentials: Includes gear marking compound with brush, thread locker, and gasket for a professional finish.
• Application Note: Engineered specifically for 8.5" GM differentials updated with aftermarket Positraction units.

The Yukon Gear Master Overhaul Kit (YK GM8.5) is the most comprehensive solution for servicing or rebuilding a GM 8.5-inch rear differential. This kit is designed for professional-grade installations, utilizing premium Timken bearings and races to ensure precise tolerances and long-term durability under load.

Fits select 1970-2003 Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac vehicles equipped with the GM 8.5" rear axle. Whether you are performing a gear swap or a full maintenance rebuild, this kit provides all necessary components to set correct gear mesh and bearing preload without the need to source individual hardware.

• Manufacturer Part Number: YK GM8.5
• High-quality Timken carrier bearings and races
• Pinion bearings and races
• Pinion seal and housing gasket
• Complete shim kit for precision adjustments
• New ring gear bolts and pinion nut
• Crush sleeve and thread locker
• Marking compound with applicator brush included

Fits select 1964-1972 Buick, Oldsmobile, and Pontiac models with the GM 8.2-inch "BOP" differential, including Skylark, Cutlass, Firebird, and GTO.

The Yukon Gear Master Overhaul Kit (YK GM8.2BOP) provides a professional-grade solution for complete differential rebuilds or gear ratio changes. This kit eliminates the guesswork by providing every component needed to restore factory-spec tolerances and performance. Yukon focuses on reliability by utilizing premium Timken bearings and races, which are known for tighter tolerances and longer service life compared to standard aftermarket alternatives.

• Premium Timken carrier and pinion bearings and races for reduced friction and heat
• Comprehensive shim kit for precise setting of pinion depth and carrier preload
• Complete hardware set including ring gear bolts and a new pinion nut
• Includes all necessary seals and gaskets to ensure a leak-free assembly
• Manufacturer Part Number: YK GM8.2BOP

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 1999-2017 Cadillac Escalade, Chevrolet Silverado, Tahoe, and Suburban, and GMC Sierra and Yukon models equipped with the GM 8.25-inch Independent Front Suspension (IFS) differential.

The Yukon Gear Master Overhaul Kit (YK GM8.25IFS-B) is the most comprehensive solution for technicians and DIYers performing a differential rebuild or gear ratio change. This kit eliminates guesswork by providing all the high-tolerance components required to set up your differential correctly the first time. Yukon utilizes premium Timken bearings and races to ensure maximum longevity and quiet operation under the demanding loads of your truck or SUV's front drivetrain.

• Premium Timken bearings and races for reduced friction and extended service life
• Comprehensive shim kit for precise pinion depth and backlash adjustment
• Complete seal set including pinion seal and axle seals to prevent leaks
• High-strength ring gear bolts and new pinion nut included
• Installation essentials: crush sleeve, thread locker, marking compound with brush, and silicone
• Designed specifically for GM 8.25" IFS housings
• Manufacturer Part Number: YK GM8.25IFS-B

Fits select 1999-2019 Chevrolet and GMC 2500 and 3500 series trucks and vans with the GM 10.5-inch 14-bolt rear differential. The Yukon Gear Master Overhaul Kit (YK GM14T-C) is a complete solution for professional differential rebuilds, providing all required components for a thorough installation or gear ratio change.

This kit features premium Timken bearings and races, recognized for maintaining precise tolerances and long-term durability under heavy-duty towing and hauling conditions. By including a comprehensive shim kit and all necessary small parts, Yukon ensures that technicians have everything needed to properly set pinion depth and carrier backlash without interruption.

• Compatible with GM 10.5-inch 14-bolt rear differentials
• Premium Timken carrier and pinion bearings and races
• Includes high-quality pinion seal, pilot bearing, and gasket
• Complete shim kit for precise gear setup
• Includes pinion nut, crush sleeve, and thread locker
• Marking compound and brush included for gear pattern verification
• Manufacturer Part Number: YK GM14T-C

Fits select 1967-1988 Chevrolet and GMC C/K/G series trucks and vans with the GM 10.5-inch 14-bolt rear differential.

The Yukon Gear Master Overhaul Kit is the most comprehensive solution for a professional-grade differential rebuild or gear ratio change. This kit is specifically engineered to eliminate downtime by providing every component required for a complete installation. Featuring industry-standard Timken bearings and races, this kit ensures proper tolerances and long-term durability under the heavy-duty cycles typical of 14-bolt axles.

Yukon performs extensive application research to ensure that every shim, seal, and small part is included for a precise setup. Whether you are replacing a worn OE unit or installing a new ring and pinion set, these kits provide the high-quality hardware needed to achieve the correct gear pattern and bearing preload.

• Timken carrier bearings and races
• Timken pinion bearings and races
• Pilot bearing and pinion seal
• Complete shim kit for precise backlash and pinion depth adjustment
• Pinion nut and crush sleeve
• Thread locker and marking compound with application brush
• Differential gasket and small hardware
• Manufacturer Part Number: YK GM14T-A

Fits select 1963-1987 Chevrolet and GMC C10, K10, K5 Blazer, Suburban, and G-Series vans with the GM 12-bolt truck differential.

The Yukon Gear Master Overhaul Kit is a comprehensive solution designed to provide every component required for a complete differential rebuild or gear installation. This kit is built around premium Timken bearings and races, ensuring the tight tolerances and long-term durability required for truck applications. By including all necessary seals, shims, and hardware in a single package, Yukon eliminates the guesswork and downtime of sourcing individual components.

• Premium Timken carrier bearings and races
• Timken pinion bearings and races
• Pinion seal and pinion nut
• Complete shim kit for precise gear pattern adjustment
• High-strength ring gear bolts
• Crush sleeve and differential gasket
• Thread locker and marking compound with applicator brush
• Manufacturer Part Number: YK GM12T

The Yukon Gear Master Overhaul Kit (YK GM12P) provides all the essential components required to professionally rebuild or service a GM 12-bolt passenger car differential. Designed for specialists who demand precision and longevity, this kit eliminates the guesswork of sourcing individual parts by providing a comprehensive package of high-tolerance components.

This kit features premium Timken bearings and races, the industry benchmark for OE-quality fitment and heat dissipation. Whether you are correcting gear whine, setting up a new gear ratio, or performing routine maintenance, these components ensure you can accurately set pinion preload and carrier backlash with the included master shim kit.

• Fits select 1964-1973 Buick, Chevrolet, and Pontiac passenger car models with a GM 12-bolt differential.
• Includes carrier bearings and races, plus pinion bearings and races (Timken).
• High-quality pinion seal and differential gasket for leak-free operation.
• Complete shim kit for precise ring and pinion setup.
• Includes ring gear bolts, pinion nut, and crush sleeve.
• Installation supplies: thread locker and gear marking compound with application brush.
• Manufacturer Part Number: YK GM12P