38.5 Axle/31 Spline Gundrilled

The Winters 38.5 Axle/31 Spline Gundrilled (MPN 5067G-38.500) is a precision-engineered axle shaft designed for high-performance differential applications that demand reliability and strength. This axle shaft spans 38.5 inches in length and features a 31-spline carrier design, making it compatible with specific Winters differential housings and gear ratios.

Gun-drilling is a manufacturing process that removes material from the axle's interior through precision drilling, which reduces rotational mass while maintaining structural integrity. This directly improves acceleration response and reduces drivetrain inertia in performance vehicles. Constructed from hardened steel in its natural finish, this axle shaft is designed to withstand the stresses of competitive racing, off-road recovery scenarios, and high-torque applications.

The 31-spline carrier interface provides secure engagement with Winters differential internals, ensuring optimal performance. At 8.65 pounds, the gun-drilled design contributes to a lighter overall drivetrain weight without sacrificing the fatigue resistance required for sustained high-performance duty. The 1.5-inch diameter profile is consistent with racing-grade axle standards, allowing for custom coating or protective treatment based on your specific operating environment.