USA Standard Gear ZGK2017 Complete Gear Package for GM 8.6" Rear 3.73 Ratio

The USA Standard Gear ZGK2017 is a comprehensive gear package designed for GM 8.6" rear differentials with a 3.73:1 ring and pinion ratio. This complete kit provides everything needed for a professional differential upgrade or rebuild in one convenient package.

Package Includes:

• 3.73 ratio ring and pinion gear set engineered for GM 8.6" rear differentials
• Complete master install kit with bearings, shims, seals, and pinion nut
• 30-spline Positraction limited-slip differential
• Axle bearings and seals for both sides

Key Features:

• Precision-manufactured ring and pinion gears for quiet operation and long service life
• Limited-slip differential improves traction in low-grip conditions
• All necessary installation components included—no need to source parts separately
• Designed specifically for GM 8.6" rear axle applications
• Quality components that meet or exceed OEM specifications

This complete gear package is ideal for truck and SUV owners looking to optimize gear ratio for towing, off-road performance, or correcting speedometer readings after tire size changes. The included Positraction unit provides superior traction compared to open differentials, making it excellent for both daily driving and performance applications.