Fits select 1980-2014 Buick, Cadillac, Chevrolet, and GMC vehicles equipped with GM 8.5-inch or 8.6-inch rear differentials. This gear set is engineered to restore performance lost to larger tires or to optimize power delivery for high-horsepower applications.

Yukon Gear & Axle high-performance ring and pinion sets are the industry benchmark for strength and precise tolerances. Utilizing state-of-the-art design and advanced heat-treating techniques, Yukon ensures every gear set features a superior surface finish and structural integrity. This 4.11 ratio set is ideal for improving off-the-line acceleration and managing effective gear ratios when running oversized wheels. For long-term peace of mind, this set is eligible for the Yukon Y.E.S. Plan, providing a lifetime, comprehensive protection plan for the original owner.

• Manufacturer Part Number: YG GM8.5-411
• Ring Gear Diameter: 8.50 inches
• Differential Fitment: GM 8.5" and 8.6"
• Gear Ratio: 4.11
• Pinion Spline Count: 30
• Ring Gear Bolt Count: 10
• High-strength construction for street, off-road, or track use

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

Yukon Gear & Axle high-performance ring and pinion gear sets are engineered for drivers who demand strength and precision. This 3.73 ratio set is designed to optimize traction and performance, whether you are compensating for larger diameter tires or managing increased horsepower. Each set is manufactured using state-of-the-art design software and advanced heat-treating techniques to ensure the structure and surface finish meet exacting tolerances for quiet operation and long-term durability.

• Manufacturer Part Number: YG GM8.5-373
• Differential Fitment: GM 8.5" and 8.6"
• Gear Ratio: 3.73
• Ring Gear Diameter: 8.50"
• Ring Gear Bolts: 10
• Pinion Spline Count: 30
• Material: High-strength steel with advanced heat treatment

This gear set is a direct replacement for the factory ring and pinion, providing a reliable solution for gear ratio changes or drivetrain overhauls in GM 10-bolt rear ends.

Fits select 1980-2014 Buick, Cadillac, Chevrolet, and GMC models with GM 8.5" or 8.6" rear differentials.

The Yukon Gear & Axle high-performance ring and pinion gear set is engineered to meet the demands of high-horsepower builds and oversized tire applications. Utilizing state-of-the-art design software and advanced heat-treating techniques, Yukon ensures that the gear tooth surface finish and internal structure meet rigorous specifications for quiet operation and long-term durability in both street and performance environments.

This 3.42 ratio gear set provides an ideal balance of acceleration and cruising efficiency. Designed to replace worn OE components or as an upgrade for better traction performance, this set is backed by the Yukon Y.E.S. Plan, a lifetime protection plan for the original owner. Professional installation is recommended to ensure proper gear mesh and backlash tolerances.

• Manufacturer Part Number: YG GM8.5-342
• Ring Gear Diameter: 8.50 inches
• Fits Differentials: GM 8.5" and 8.6"
• Ring Gear Bolts: 10
• Pinion Spline Count: 30
• Gear Ratio: 3.42

Fits select 1980-2014 Buick, Cadillac, Chevrolet, and GMC vehicles with GM 8.5" and 8.6" rear differentials.

Yukon Gear & Axle high-performance ring and pinion gear sets are engineered to provide a reliable, quiet solution for drivetrain maintenance and performance upgrades. Whether you are correcting the gear ratio for larger tires or replacing a worn factory set, these gears are manufactured using advanced heat-treating processes and state-of-the-art design to ensure precise tolerances and long-term durability. This set is covered by the Yukon Y.E.S. Plan, a lifetime protection plan for as long as you own the vehicle.

• Manufacturer Part Number: YG GM8.5-323
• Gear Ratio: 3.23
• Ring Gear Diameter: 8.50 inches
• Ring Gear Bolt Count: 10
• Pinion Splines: 30
• Compatible Differentials: GM 8.5" and GM 8.6"

Fits select 1980-2014 Buick, Cadillac, Chevrolet, and GMC models with GM 8.5" or 8.6" rear differentials. This Yukon Gear & Axle high-performance ring and pinion gear set provides a precise 3.08 ratio, ideal for restoring factory performance or optimizing highway fuel economy and cruising RPM.

Engineered for durability under stress, Yukon utilizes advanced heat-treating techniques and state-of-the-art design software to ensure quiet operation and a perfect gear mesh. Whether you are replacing a worn OE gear set or adjusting your final drive ratio for larger tires or increased horsepower, this set is built to meet exacting tolerances. The Yukon Y.E.S. Plan offers a comprehensive lifetime protection plan for the original owner, ensuring long-term reliability for your drivetrain.

• Manufacturer Part Number: YG GM8.5-308
• Ring Gear Diameter: 8.50 inches
• Pinion Spline Count: 30
• Ring Gear Bolt Count: 10
• Gear Ratio: 3.08
• Differential Fitment: GM 8.5" and 8.6"

Fits select 1988-2018 Chevrolet, GMC, and Cadillac 1500/2500 trucks and SUVs with the GM 8.25-inch IFS front differential.

Yukon Gear & Axle high-performance ring and pinion sets are engineered for drivers demanding increased strength and precision. This 4.88 ratio gear set is designed specifically for GM 8.25" IFS reverse rotation front ends, providing an essential upgrade for vehicles equipped with larger tires or those requiring optimized torque delivery. Each gear set undergoes advanced heat-treating and state-of-the-art testing to ensure the tooth surface finish and structural integrity meet rigorous tolerances for quiet operation and long-term durability.

• Precision Engineering: Utilizes leading-edge design and quality testing for exact specifications.
• Enhanced Durability: Advanced heat-treating processes optimize gear hardness and longevity.
• Optimized Performance: Corrects speedometer and restores power bands after installing larger tires.
• Comprehensive Protection: Covered by the Yukon Y.E.S. Plan lifetime protection for the original owner.

• Manufacturer Part Number: YG GM8.25-488R
• Ring Gear Diameter: 8.25 inches
• Ring Gear Bolts: 10
• Pinion Spline Count: 30
• Gear Ratio: 4.88
• Rotation: Reverse

Fits select 1988-2018 Cadillac Escalade, Chevrolet Silverado/Tahoe/Avalanche/Suburban, and GMC Sierra/Yukon models equipped with the GM 8.25-inch IFS front differential.

Yukon Gear & Axle high-performance ring and pinion gear sets are the professional standard for drivetrain upgrades. This 4.56 ratio gear set is designed to restore low-end torque and fuel efficiency after installing larger tires or to optimize traction for off-road performance. Yukon engineers utilize advanced heat-treating techniques and state-of-the-art quality testing to ensure the gear structure and surface finish withstand high-stress environments. The reverse rotation design is specifically engineered for GM 8.25" Independent Front Suspension (IFS) applications.

• Manufacturer Part Number: YG GM8.25-456R
• Ring Gear Diameter: 8.25 inches
• Gear Ratio: 4.56
• Rotation: Reverse Rotation
• Pinion Spline Count: 30
• Ring Gear Bolt Count: 10
• Covered by Yukon Y.E.S. Plan lifetime protection

Fits select 1988-2018 Cadillac Escalade, Chevrolet Silverado, Tahoe, Suburban, and GMC Sierra, Yukon with 8.25-inch IFS reverse rotation front axles.

Upgrade your drivetrain with the Yukon Gear High Performance Ring and Pinion Gear Set. Designed for the GM 8.25-inch Independent Front Suspension (IFS) housing, this 4.11 ratio gear set is engineered to handle increased horsepower and the added rotating mass of larger tires. Yukon utilizes state-of-the-art design software and advanced heat-treating techniques to ensure a precise tooth mesh and a durable surface finish that reduces friction and heat build-up.

Whether you are restoring off-road performance after a suspension lift or seeking better low-end torque for towing, this reverse rotation set provides the strength and reliability required for demanding applications. The set is backed by Yukon's Y.E.S. Plan, offering long-term protection for your vehicle's differential.

• Manufacturer Part Number: YG GM8.25-411R
• Ring Gear Diameter: 8.25 inches
• Gear Ratio: 4.11
• Pinion Spline Count: 30
• Ring Gear Bolts: 10
• Axle Type: GM 8.25" IFS Front
• Rotation: Reverse