Moog 445 Universal Joint - Front Driveshaft at Front Axle or Front Driveshaft at Transfer Case

Reliable Moog Universal Joint for Select GM and Isuzu Vehicles

The Moog 445 universal joint is engineered to provide dependable driveline performance for a range of GM and Isuzu models. Designed with greaseable bearings and precise dimensions, this U-joint supports smooth power transfer and durability in demanding driving conditions.

• Greaseable design with regular lube fitting in cross for easy maintenance
• Combination of 2 grooved and 2 plain round bearings for balanced wear resistance
• Bearing cap diameter of 1.063 inches (27.0 mm) on both axes
• Length measurements: 3.22 inches (81.7 mm) outside bearing to outside bearing, 2.344 inches (59.5 mm) inside groove to inside groove plus lock ring thickness
• Compatible with multiple GM and Isuzu models including Chevrolet Blazer, GMC Envoy, and Hummer H3

Technical Details and Specifications

The Moog 445 universal joint features a bearing cap type that includes two grooved and two plain round bearings, providing a combination that balances load distribution and longevity. Both bearing caps measure 1.063 inches (27.0 mm) in diameter, ensuring a precise fit within the driveline assembly. The greaseable cross with a regular lube fitting allows for routine lubrication, extending the service life of the joint. Length A measures 3.22 inches (81.7 mm) from outside bearing to outside bearing, while Length B is 2.344 inches (59.5 mm) measured inside groove to inside groove plus the thickness of two lock rings. This U-joint corresponds to the OE series combination 368 x 369, making it suitable for direct replacement in compatible vehicles.

Compatible Vehicles and Applications

This Moog universal joint is compatible with a variety of vehicles, including:

• Buick Rainier
• Chevrolet Blazer, S10, S10 Blazer, S15, S15 Jimmy, Trailblazer, Trailblazer EXT
• GMC Envoy, Envoy XL, Envoy XUV, Jimmy, Sonoma
• Hummer H3, H3T
• Isuzu Ascender, Hombre, Bravada
• Oldsmobile and Saab models such as the 9-7x

Use this universal joint to address driveline issues such as vibration, noise, and joint wear in these specific models.

Common Issues Addressed by Moog 445 Universal Joint

• Eliminates driveline vibrations caused by worn or damaged U-joints
• Prevents drivetrain noise from loose or failing bearings
• Restores smooth rotational movement in the drive shaft
• Reduces risk of driveline failure due to lack of lubrication
• Improves overall driveline reliability and vehicle performance

Installation Notes and Tips

When installing the Moog 445 universal joint, ensure the grease fitting is accessible for future maintenance. Properly torque bearing caps to manufacturer specifications to avoid premature wear. Regular lubrication through the grease fitting is recommended to maintain optimal performance and extend service life. Verify compatibility with your vehicle’s make and model before installation.

Quality Assurance and Warranty

Moog universal joints are manufactured to meet or exceed OEM standards, ensuring reliable fit and function. The 445 part number is backed by Moog’s quality control processes, though specific warranty details should be confirmed with the product documentation or supplier. This part is designed for durability and consistent performance in demanding automotive applications.