Steering U-Joint Steel 17MM DD X 3/4 Smooth

The Steering U-Joint Steel 17MM DD X 3/4 Smooth by Borgeson is a precision universal joint engineered for manual steering systems that require flexible shaft coupling between misaligned drivetrain components. This single-joint design connects a 17mm double-D input shaft to a 3/4-inch smooth output shaft, making it ideal for classic vehicles, custom hot rods, and performance steering columns where standard rigid couplings would introduce binding or vibration. Steering u-joints absorb angular and parallel misalignment while transmitting torque smoothly, ensuring responsive steering feel and reduced drivetrain noise.

Constructed from high-strength steel with a natural finish, this u-joint features a robust design that withstands the repetitive angular forces inherent in steering system operation. The 17mm double-D connection provides a secure, positive lock to splined or keyed input shafts, while the 3/4-inch smooth bore output accepts a shaft that can be pressed or pinned in place for maximum rigidity. The single-joint configuration offers compact packaging without sacrificing alignment flexibility, making it suitable for tight engine bays and custom fabrication environments where double-joint assemblies prove impractical. Steel construction ensures durability under load and resistance to fatigue over thousands of steering cycles.

This component benefits builders and restorers of classic American muscle cars, street rods, and custom vehicles where aftermarket steering columns require compatibility bridging between modern control inputs and vintage chassis geometry. Installation involves aligning the input and output shafts within acceptable operating angles—typically 15 to 25 degrees—and securing the output shaft via set screw or retaining pin. Proper alignment minimizes vibration and extends u-joint service life. The 0.85 lb weight and compact 3.75 x 1.75 x 5.25-inch footprint facilitate easy mounting under dash or in engine compartments with space constraints. Borgeson steering u-joints are recommended for builders seeking OEM-quality steering feel without full column replacement.