Moog 321 Universal Joint

MOOG 321 Premium Universal Joint

MOOG 321 is a premium universal joint for driveline service on select Ford and Lincoln trucks and SUVs. It is built with durable materials and tested for dependable operation, with design details that support a smoother, more straightforward installation.

Key Features

• Premium-grade universal joint for driveline and axle service
• Greasable design for routine maintenance access
• Built for applications with staked-in U-joints
• Supports fitments at the transmission, rear axle, center bearing, and rear driveshaft locations
• MOOG 321 cross-references Eastern Catalytic 30488 for the same application

Detailed Description

MOOG 321 is a premium universal joint engineered for driveline repair on 2004-2007 Ford F-150, 2004 Ford F-150 Heritage, 2006-2007 Lincoln Mark LT, and 2005-2006 Lincoln Navigator applications. It is listed for multiple driveline positions, including at transmission, at rear axle, at center bearing, rear, center, rear driveshaft at transmission, rear driveshaft at support bearing, and rear driveshaft at rear axle. This part number is a practical choice when servicing a Ford F-150 or Lincoln Mark LT driveline that uses a greasable, staked-in U-joint design.

What It Helps Address

• Driveline vibration from worn universal joint bearings
• Clunking or driveline lash during acceleration or deceleration
• Need for service on a greasable U-joint assembly
• Wear at transmission, rear axle, center bearing, or rear driveshaft connection points
• Replacement needs on Ford F-150 and Lincoln Navigator driveline service

Installation Notes and Tips

Verify the vehicle year, model, driveline position, and configuration notes before ordering. This MOOG 321 application is listed for vehicles with 2 U-joints or 3 U-joints depending on position, and for greasable setups with staked-in U-joints. Confirm the existing joint style and mounting location on the Ford F-150, Ford F-150 Heritage, Lincoln Mark LT, or Lincoln Navigator before installation.

Quality Assurance

MOOG positions this premium universal joint with materials selected for durability and testing focused on reliable driveline performance. The brand also emphasizes problem-solving design details to help make installation more efficient.