Steering U-Joint 13/16in-36 x 3/4in DD

The Steering U-Joint 13/16in-36 x 3/4in DD is a precision universal joint engineered for heavy-duty steering and driveline applications where shaft misalignment must be accommodated reliably. This single-joint design connects shafts with different bore diameters—a 13/16-inch 36-spline input and a 3/4-inch double-D output—making it ideal for custom automotive fabrication, agricultural equipment, and industrial machinery where steering columns or drive shafts require flexible coupling. Whether you're building a custom chassis, servicing equipment with worn steering components, or designing a retrofit driveline, this u-joint provides the mechanical flexibility needed to maintain smooth operation across varying angles and load conditions.

Constructed from hardened steel and finished in nickel plating, this steering u-joint delivers corrosion resistance and durability in demanding environments. The nickel-plated surface protects against rust while maintaining the strength required for power transmission and steering torque. The 13/16-inch 36-spline connection ensures positive engagement with compatible shafts, while the 3/4-inch double-D output accommodates standard steering box or pinion interfaces. Single-joint design keeps weight minimal and installation straightforward, though applications involving extreme angles may benefit from dual-joint assemblies. The compact footprint—measuring 5.6 x 1.8 x 6.8 inches and weighing just 0.94 pounds—integrates easily into tight steering columns and confined engine bays without adding unnecessary mass.

This u-joint serves restoration specialists, off-road fabricators, and equipment technicians who need universal steering or driveline couplings rated for medium-duty continuous operation. It is particularly valuable in hot-rod and custom truck builds where non-standard shaft combinations demand adaptive coupling solutions. Proper installation requires alignment of splines and secure fastening to prevent slippage; periodic inspection for wear and lubrication—if the joint design permits—will extend service life. Compatible with any application accepting a 13/16-36 spline input and 3/4-inch double-D output, this single joint delivers reliable steering response and vibration damping for years of dependable service.