Axle 31 Spline 35.0in 1.145in OD

The Axle 31 Spline 35.0in 1.145in OD is a precision-engineered drivetrain component designed for high-performance vehicles and custom automotive builds. Ideal for upgrading rear differentials, building custom hot rods, or restoring classic muscle cars, this axle shaft provides the necessary strength and geometry to handle increased power and torque.

This 31-spline axle features a 1.145-inch outer diameter and measures 35 inches in length, making it compatible with popular Ford 9-inch and comparable third-party differential housings. The precision-ground spline profile ensures a tight, slip-free fit in modern differential carriers, while the larger outer diameter contributes to improved bending stiffness and fatigue resistance.

Builders and mechanics installing this axle should verify spline count and shaft length against their specific differential housing before purchase, as 31-spline compatibility is critical for optimal performance. With a weight of 8.7 lbs, this component reflects the strength-to-weight ratio expected in performance applications where every ounce matters.