36.5in Axle/31 Spline Gundrilled

The 36.5in Axle/31 Spline Gundrilled shaft from Winters is engineered for serious drag racing, high-horsepower street builds, and high-performance applications where strength and reliability are essential. This axle is designed for competitors and enthusiasts who demand maximum durability in extreme power-delivery scenarios. Whether you're building a dedicated bracket racer or a turbocharged street machine, this gundrilled axle handles the rotational forces that standard units cannot sustain.

The 31-spline design provides superior torque capacity compared to 28-spline alternatives, distributing loads across more engagement points for reduced stress concentration at the differential and wheel hub interface. Gundrilling, the precision drilling process that removes material from the axle core, significantly reduces unsprung weight while maintaining structural integrity. This lightweighting improves acceleration, reduces chassis stress, and enhances suspension response.

The 36.5-inch length accommodates popular high-performance rear-end housings, and Winters' manufacturing standards ensure concentricity and straightness tolerances that prevent vibration and premature bearing wear. This axle fits Winters quick-change and bolt-together rear-end platforms widely used in drag racing and road racing. Verification of your specific differential housing width and spline engagement is essential before ordering—consult your rear-end manufacturer's specifications.