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Introducing our 33 Spline PRO Series Centre Spool Kit, specifically designed for those seeking maximum horsepower and requiring the largest size halfshafts possible.
Our billet half shafts are crafted from the highest-grade 4340 chromoly available on the market today. With increased size and spline count, these shafts can withstand high torque and twisting stresses, making them capable of handling over 1,500 BHP.
These kits are available for both the 5 Bolt and 6 Bolt GTR variants. Please select the appropriate combination during checkout.
Our spools are developed using 4140 chromoly billet materials and are machined to tight tolerances to ensure your wheels remain constantly locked. They are ideal for drag or drift applications where equal torque must be applied to both rear wheels, ensuring optimal acceleration potential.
Weighing less than 5 kg, these units offer performance benefits by reducing the power required to rotate a lighter mass, resulting in faster times on the strip and less wear on your drivetrain.
After manufacturing, the spools undergo a nitriding treatment for enhanced durability.
What is Nitriding? A heat treating process that diffuses nitrogen into the surface of a metal to create a case-hardened surface. These processes are most commonly used on low-carbon, low-alloy steels. They are also used on medium and high-carbon steels, titanium, aluminium and molybdenum.
Designed and machined by Speedtek Auto Racing.
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