GM 10 Bolt 7.5 C-Clip 28 Spline Axles 28-7/16in

The GM 10 Bolt 7.5 C-Clip 28 Spline Axles from Moser Engineering represent the gold standard for rebuilding or upgrading classic and modern GM rear differentials with 10-bolt housings. These 28-spline axles are engineered for enthusiasts and mechanics who demand reliability in street, strip, or daily-driver applications where stock components have reached their limits. Whether you're swapping in a higher-horsepower engine, reinforcing a differential prone to breakage, or building a solid foundation for future modifications, these axles deliver the strength and precision that separates a quality rebuild from a marginal one.

Moser Engineering's 28-spline design provides a significant step up in load capacity compared to stock 27-spline or smaller profiles, distributing torque across more engagement points and reducing stress concentration at the spline roots. The C-clip retention system is standard for 10-bolt differentials, allowing straightforward installation in existing housings without requiring full spool or bearing modifications. At 28-7/16 inches in length, these axles are precisely dimensioned for correct differential setup, ensuring proper carrier clearance and bearing preload geometry. The 30.15-pound weight reflects the robust construction required to handle increased power without flex or deflection that can lead to gear noise, vibration, or catastrophic failure under hard acceleration.

These axles are ideal for owners of Chevrolet, GMC, and other GM vehicles equipped with 10-bolt rear differentials spanning multiple generations. Mechanics and restoration shops specify Moser Engineering axles when reliability and performance cannot be compromised—whether supporting a 400-horsepower V8 swap, handling repeated track days, or simply ensuring longevity in high-mileage vehicles. Installation requires proper differential removal and bearing setup; consultation with a differential specialist or detailed service manual is recommended to ensure correct preload and backlash adjustment. Pair these with quality bearings, seals, and gaskets for a complete, bulletproof rear axle assembly.