ACDelco 14012691 Differential Pinion Bearing Spacer

The ACDelco 14012691 is a genuine GM differential pinion bearing spacer designed for precise positioning and preload adjustment of pinion bearings in select General Motors rear axle assemblies. This critical component maintains proper bearing clearance and ensures correct pinion depth, which is essential for optimal gear mesh patterns and differential longevity.

Key Features:

• Genuine ACDelco OE quality component for GM vehicles
• Precision-manufactured to exact factory specifications
• Ensures proper pinion bearing preload and positioning
• Critical for differential assembly and rebuild procedures
• Direct replacement for GM part number 14012691

This spacer is used during differential rebuild and pinion bearing replacement to achieve the correct pinion depth and bearing preload. Proper installation is essential for quiet operation, correct gear wear patterns, and maximum differential service life.