USA Standard Gear 39021 Differential Spider Gear

The USA Standard Gear 39021 is a precision-engineered differential spider gear designed to deliver reliable performance in demanding drivetrain applications. This component is a critical part of the differential assembly, serving as one of the internal gears that allows wheels to rotate at different speeds during cornering while maintaining power distribution.

Key Features:

• Manufactured to OEM specifications for proper fit and function
• Heat-treated steel construction for enhanced durability and wear resistance
• Precision machined gear teeth ensure smooth operation and minimal noise
• Direct replacement for worn or damaged original spider gears
• Designed for use in standard open differentials

USA Standard Gear is known for producing quality drivetrain components that meet or exceed original equipment standards. This spider gear is an essential component for differential rebuilds and repairs, helping restore proper function to your vehicle's differential system.