Yukon Gear & Axle ZK GM8.5 USA Std Master Overhaul Kit for GM 8.5" 10-Bolt Rear

Regular price: $122.95
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Sale price: $122.95

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Product Specification:

SKU:YUKZK GM8.5

MPN: ZK GM8.5

UPC: 883584370550

Weight: 6.0 lb

Type: Differential Overhaul Kits

Vehicle Fitment

GM 8.5" 10-Bolt Differentials (Full-size GM pickups/SUVs 1973-2017; includes Chevy Silverado/Sierra, Tahoe/Suburban, GMC Sierra/Yukon, Cadillac Escalade, Avalanche, Colorado/Canyon)

Features

High-quality Koyo/Timken pinion & carrier bearings and races
Durable pinion seal and differential gasket
Crush sleeve for precise pinion preload
Complete shim kit for backlash and depth tuning
Ring gear bolts with thread locker
Marking compound and brush for gear pattern setup
Seals, hardware, and oil baffles included
All-in-one kit suitable for HD posi or locker setups

Specifications

Fits GM 8.5" 10-bolt differentials (front or rear)
Uses 10-bolt cover, Koyo/Timken bearings
Crush sleeve torque spec: 20-40 in-lb for pinion preload
Shim tolerances ±0.001" for accurate backlash
Ring bolts: Grade 8, thread locker included
Seal rated to 80 psi differential pressure
Kit weight approx. 6.2 lb
Emissions-legal; California Prop 65 warning applies

Included Components

2x pinion bearings (Koyo inner, Timken outer)
2x carrier bearings
2x bearing races
1x pinion seal
1x differential cover gasket
1x crush sleeve
Shim kit
Ring gear bolts with thread locker
1x pinion nut
Thread locker packet
1x marking compound with brush
Oil baffle and slinger (if applicable)

Product Description

The Yukon Gear & Axle ZK GM8.5 USA Standard Master Overhaul Kit offers everything needed to rebuild or service GM 8.5" 10-bolt differentials in full-size trucks and SUVs from 1973 through 2017, including Silverado, Sierra, Tahoe, Suburban, Yukon, and more. Featuring premium Koyo and Timken bearings, crush sleeve for consistent preload, full shim kit, hardware, seals, and gear-marking tools, this kit ensures a correct, long-lasting installation for open, posi, or locker setups.

Ideal for do-it-yourself mechanics and professional rebuild shops, the kit provides precise backlash and depth adjustment without needing to purchase bearings or hardware separately. With OEM-grade components and detailed installation tools, it delivers reliable performance and drivetrain smoothness. Note: apply 20-40 in-lb preload and verify gear pattern for optimal longevity. This Prop 65-visible kit weighs approximately 6.2 lb and is emissions-legal in the USA for all covered applications.