3/4-36 X 3/4 DD Single Bearing U-Joint

The 3/4-36 X 3/4 DD Single Bearing U-Joint from Borgeson is a precision-engineered component designed for custom driveshaft assemblies in high-performance and modified vehicles. This u-joint serves as the critical link between your transmission output and driveshaft, enabling smooth power transfer while accommodating slight angles between drivetrain components. Whether you're building a hot rod, restoring a classic truck, or upgrading a street machine, this u-joint delivers the durability and concentricity that serious enthusiasts demand.

Borgeson's design features a 3/4-inch round bore with a 36-spline connection, paired with a 3/4-inch double-D (DD) output shaft interface for positive engagement and minimal play. The single-bearing configuration is designed to provide efficient performance, making it ideal for lighter applications or racing builds where reduced inertia translates to quicker acceleration response. The precision manufacturing ensures concentricity within tight tolerances, critical for eliminating vibration and extending driveline component life.

This u-joint is commonly specified in street rods, early muscle cars, custom restorations, and performance trucks where driveshaft builders source individual joints to match existing spline counts and bore sizes. Enthusiasts will appreciate its compatibility with various performance applications, ensuring reliable power transfer in demanding conditions.