American Axle & Manufacturing 74020013 Differential Pinion Seal Kit for AAM 11.5" Axles

The American Axle & Manufacturing 74020013 is a genuine OE pinion seal kit designed specifically for AAM 11.5-inch rear axles found in GM and Chrysler heavy-duty trucks. This comprehensive seal kit includes all necessary components to properly seal the pinion shaft and prevent gear oil leakage from your differential assembly.

Key Features:

• Genuine AAM OE quality components engineered to factory specifications
• Complete kit includes pinion seal, spacers, and hardware required for installation
• High-quality elastomer sealing material with robust metal backing for durability
• Designed to withstand extreme pressures and temperatures in differential operation
• Prevents gear oil leaks and contamination that can lead to costly drivetrain damage
• Direct replacement for worn or damaged pinion seals
• Application: GM 11.5" and Chrysler 11.5" AAM rear axles (14-bolt pattern)

This kit is essential for maintaining proper differential lubrication during ring and pinion replacement or when addressing pinion seal leaks. Spacers included in the kit ensure correct pinion depth and bearing preload during installation. Manufactured to AAM's strict OE standards for reliable, leak-free performance and long service life.