Axle 31 Spline 30.0in 1.130in OD

The Axle 31 Spline 30.0in 1.130in OD from Strange Oval is a precision-engineered axle shaft designed for serious performance and custom automotive builds. This component serves as the backbone of high-performance rear-end assemblies, transferring engine power directly to the wheels while maintaining structural integrity under extreme load conditions. Whether you're building a dedicated track car, upgrading a street rod, or restoring a classic muscle machine, a quality axle shaft is non-negotiable for reliability and safety.

Built from high-strength steel and gun-drilled for weight optimization, this 30-inch axle features a robust 31-spline carrier connection with a 24-spline drive flange interface. The gun-drilling process removes excess material from the shaft's core without compromising torsional rigidity, a critical engineering technique used in drag racing and performance applications. The 1.130-inch outer diameter provides optimal strength-to-weight ratio, while the natural steel finish allows for customer customization and coating options. At 7.4 pounds, this shaft balances durability with minimal unsprung weight—a key factor in suspension responsiveness and acceleration.

This axle is ideal for mechanics and enthusiasts upgrading vehicles with high-horsepower engines or modified drivetrains requiring stronger, lighter components than factory equivalents. The 31-spline configuration ensures maximum engagement and load distribution, making it suitable for manual and automatic builds alike. Proper installation requires careful centering and torque specifications to the carrier and flange—consult your vehicle's service manual or Strange Oval's technical documentation. Verify your existing axle length and spline count before ordering to ensure correct fit within your third-member housing.