Moog 331 Universal Joint

Moog Universal Joint 331 Overview

The Moog Universal Joint 331 is designed for driveline and axle applications requiring reliable rotational movement and durability. This universal joint is compatible with a wide range of vehicles including Chevrolet Silverado 1500, Ford F-150, and Nissan Armada, ensuring precise fitment and performance.

• Greaseable design with regular lube fitting in cross for easy maintenance
• Four round plain bearings for smooth operation and reduced wear
• Bearing cap diameters of 1.188 inches (30.1-30.2 mm) for consistent fit
• Length measurements of 3.625 inches (92.1 mm) from outside bearing to outside bearing
• OE Series Spicer 1350 (spl30) identification for compatibility with factory specifications

Technical Specifications and Features

The Moog 331 universal joint features four round plain bearings housed in bearing caps with a diameter of 1.188 inches (30.1-30.2 mm). The joint measures 3.625 inches (92.1 mm) in length on both axes, measured from outside bearing to outside bearing, ensuring precise alignment in the driveline assembly. This part is greaseable, equipped with a regular lube fitting located in the cross, allowing for routine lubrication to extend service life and maintain smooth operation. The bearing type is round plain, which is standard for many driveline applications, providing reliable rotational movement under load.

Compatible Vehicles and Applications

This universal joint is compatible with a broad range of makes and models, including Buick, Cadillac, Chevrolet, Dodge, Ford, GMC, INFINITI, Lincoln, Mercury, Nissan, Oldsmobile, Pontiac, Ram, Rolls-Royce, and Toyota. Specific models include Chevrolet Silverado 1500, Ford F-150, Nissan Armada, Cadillac Escalade, and many others. The Moog 331 is suitable for use in driveline and axle assemblies where Spicer 1350 (spl30) series universal joints are required.

Common Issues Addressed by Moog Universal Joint 331

• Eliminates driveline vibrations caused by worn or damaged universal joints
• Prevents premature wear of driveline components through proper bearing design
• Reduces noise and harshness from failing universal joints
• Restores smooth rotational movement in the drive shaft assembly
• Supports proper torque transfer and driveline alignment

Installation Notes and Tips

When installing the Moog Universal Joint 331, ensure the bearing caps are properly seated and the grease fitting is accessible for routine maintenance. Use compatible grease to lubricate the joint through the regular lube fitting located in the cross. Verify fitment with the vehicle’s OEM specifications, especially for Chevrolet Silverado 1500, Ford F-150, and Nissan Armada models. Proper installation will help maintain driveline balance and reduce wear on connected components.

Quality Assurance and Warranty

Moog universal joints are manufactured to meet or exceed OEM standards, ensuring durability and reliable performance. The 331 part number is backed by Moog’s quality assurance processes, providing confidence in fit and function. This universal joint is designed for long service life when properly maintained and installed according to manufacturer guidelines.