55.5in Micro Axle 1-3/4 in. Splined

The 55.5in Micro Axle 1-3/4 in. Splined shaft from Diversified Machine is engineered for Micro Sprint racing applications where precision drivetrain components are non-negotiable. This axle shaft serves as a critical transfer point between the differential and rear wheels, directly impacting acceleration, cornering stability, and overall power delivery on the track. Racers and high-performance fabricators rely on properly sized axle assemblies to maximize torque capacity and maintain consistent handling characteristics during sustained competition.

Manufactured with a 1-3/4 inch spline diameter and 18-1/2 inch spline length, this 55.5 inch axle is designed to withstand the lateral and torsional loads inherent in sprint car racing. The splined interface provides secure mechanical locking that resists slip under high-torque conditions, while the black finish offers corrosion resistance in harsh track environments. At 8.81 lbs, the shaft balances strength with minimal rotational mass, a critical consideration for vehicles where unsprung weight directly affects suspension response and tire contact patch consistency.

Micro Sprint competitors and fabricators building or rebuilding rear axle assemblies benefit most from this component, particularly when matching OEM or aftermarket differential housings with compatible spline specifications. Installation requires proper alignment with existing hub and differential components to ensure vibration-free operation at sustained RPM. Verify spline count and housing bore diameter before purchase to confirm fitment with your specific chassis and differential setup.