H/R Driveshaft 3in Dia 44-5/8 Center to Center

The Precision Shaft Technologies H/R Driveshaft 3-inch Diameter 44-5/8 Center to Center is a heavy-duty marine propulsion component engineered for high-performance hot rod applications and boat drive systems. This driveshaft combines proven steel construction with precision engineering to deliver reliable power transmission in demanding marine and automotive environments where standard components fall short.

Built to exacting specifications, the 3-inch outer diameter shaft accommodates 1330 U-joint yokes that enable flexible articulation across varied angles without binding or vibration—critical for marine drivetrain systems subject to dynamic loading and hull flexing. The 44.625-inch center-to-center length positions this shaft for applications requiring substantial span between transmission and differential or jet drive output. Steel construction in natural finish resists corrosion better than lighter alloys while maintaining the strength needed for high-horsepower transmission. Weighing 15.4 pounds, this shaft achieves the balance between structural rigidity and acceptable weight for performance-oriented installations.

This driveshaft serves builders and restorers upgrading legacy marine engines, custom boat propulsion systems, and high-performance hot rod applications where OEM components lack capacity or compatibility. The universal design and 1330 yoke configuration make it adaptable across multiple platform configurations, reducing the need for custom fabrication. Serious marine builders and weekend boaters working on driveline upgrades will find this component sized for mid-to-heavy-duty applications demanding reliable torque transfer without flex or premature wear.