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

The UNISTEER PERF PRODUCTS U-Joint 13/16-36 x 3/4 DD is a precision steering universal joint designed for marine steering systems requiring reliable torque transmission between offset shafts. Built from stainless steel with a polished finish, this single-joint assembly connects a 3/4-inch double-D shaft to a 13/16-inch 36-spline component, making it the critical articulation point in many marine steering columns where shaft angles and misalignment occur.

The stainless steel construction resists the corrosive effects of saltwater and moisture that degrade standard steel joints over time. The polished finish maintains clarity and reduces surface stress concentrations while providing visual confirmation of material integrity. The specific bore dimensions—3/4-inch double-D mated to 13/16-inch 36-spline—ensure precise fitment within factory steering systems designed to these OEM specifications. Universal joint design allows both angular and slight lateral misalignment, absorbing the vibration and shock loads that occur during helm operation and dynamic steering corrections on the water.

This component is essential for boaters maintaining or rebuilding steering systems on vessels where the original u-joint has developed excessive play, noise, or binding. Whether you're performing a weekend repair on a center console or conducting major steering system restoration on a larger vessel, this UNISTEER replacement joint restores smooth, responsive helm feel and eliminates the steering slack that signals worn-out coupling hardware. The lightweight design (1.29 lbs) integrates seamlessly into existing column assemblies without requiring reinforcement or repositioning of surrounding components.