Speedway Motors Differential Cross Pin for 10-Bolt 8.5 Inch Ring Gear Rear Axle, Replacement Spider Gear Shaft for GM Differential Carrier Assembly, Steel Cross Pin Shaft

Special 4130 Chromoly cross pin required for ratios of 5.38 or higher.

• GM 10-Bolt Differential Fitment – Designed for GM 10-bolt rear axles with 8.5" ring gear differentials, commonly used in many GM passenger cars and trucks for dependable drivetrain service.
• Spider Gear Cross Pin Function – Serves as the differential cross shaft that supports the spider gears inside the carrier, helping maintain proper gear alignment and operation within the differential assembly.
• Precision Steel Construction – Manufactured from durable steel to provide the strength required to handle drivetrain loads and maintain long-lasting performance in rear axle assemblies.
• Direct Replacement Design – Engineered to replace worn or damaged factory cross pins during differential rebuilds, gear swaps, or routine axle service.
• Essential Differential Hardware – Ideal component for drivetrain repairs or upgrades when servicing GM 8.5" 10-bolt carriers, ensuring reliable operation of spider gears and internal differential components.