Axle 31 Spl 28.5 Solid

The Allstar Performance Axle 31 Spline 28.5 Solid is a full-floating rear axle shaft engineered for high-performance automotive applications requiring robust load handling and spline precision. At 28.5 inches in length with a 31-spline carrier interface and 24-spline drive flange, this solid steel axle delivers the strength and durability demanded by serious engine builders, off-road enthusiasts, and transmission swappers working with performance drivetrains.

Constructed from solid steel in natural finish, this axle shaft eliminates the potential weak points found in hollow designs, providing superior resistance to bending and torsional stress under extreme torque loads. The 31-spline carrier connection ensures secure engagement with modern high-performance differentials, while the 24-spline drive flange accepts compatible wheel hubs and brake assemblies. At 10.03 lbs, the shaft's weight reflects its solid-core construction—a deliberate engineering choice favoring strength over minimal mass. The precise 2x2 inch cross-sectional profile and 37.5-inch overall dimension accommodate standard full-sized domestic rear axle housings commonly found in muscle cars, trucks, and performance vehicles.

This axle suits builders upgrading stock suspensions for road racing, drag racing, and high-torque street applications. It's particularly valuable when transitioning to modern differentials or when OEM axles cannot handle increased power output from engine modifications. Verification of spline count, flange type, and overall length against your existing differential housing is essential before purchase. The natural steel finish requires protection from corrosion through appropriate coating or maintenance.

Allstar Performance's axle shafts are designed for builders who demand verifiable specifications and proven manufacturing standards. This solid-design Axle 31 Spline 28.5 represents a direct upgrade path for vehicles transitioning from original equipment to performance-grade drivetrain components.