Yukon Gear & Axle ZG GM8.5-390 Ring and Pinion Gear Set 3.90 Ratio GM 8.5"

The Yukon Gear & Axle ZG GM8.5-390 is a high-performance ring and pinion gear set designed specifically for GM 8.5-inch rear axles with a 3.90:1 gear ratio. This USA Standard gear set delivers exceptional strength and reliability for street, towing, and performance applications.

Key Features:

• Precision-engineered 3.90:1 gear ratio for improved acceleration and torque multiplication
• Manufactured using advanced CNC machining and heat-treating processes for maximum durability
• Optimized tooth design ensures quiet operation and reduced gear noise
• Easy installation with proper setup and shimming procedures
• Direct fit replacement for GM 8.5-inch rear differentials found in trucks, SUVs, and performance vehicles
• Backed by a one-year manufacturer warranty for quality assurance

USA Standard Gear sets from Yukon Gear & Axle incorporate the latest gear design technology to provide a quiet-running drivetrain that's built to withstand high-torque applications. Each ring and pinion set is manufactured to strict tolerances to ensure proper gear contact and longevity. Whether you're looking to improve off-the-line performance, optimize towing capability, or restore your differential to original specifications, this gear set delivers professional-grade quality at a competitive price point.