Dorman 81004 Universal Joint U-Bolt Kit

Dorman 81004 Universal Joint U-Bolt Kit

Dorman 81004 is a universal joint U-bolt kit built to match the original hardware used to repair and resecure universal joints on specified vehicles. It uses steel construction and OE-style dimensions for service work on driveline applications that require a 1.125 in. bearing cap diameter.

Key Features

• Steel construction for driveline service durability
• Designed for universal joints with 1.125 in. bearing cap outside diameter
• Black, bronze, and silver finish details
• OE-style replacement for original U-bolt hardware
• Direct service part for Ford truck, van, and classic car applications

Detailed Description

This Dorman universal joint U-bolt kit is engineered for repair work where the original U-joint retaining hardware has worn, stretched, or been removed during driveline service. The part number 81004 is commonly used on Ford E-Series vans, Ranger, F-Series trucks, Bronco, Aerostar, and select classic Ford and Mercury models that use 1.125 in. bearing caps. This part cross-references Ford C1AZ4529A for the same application.

With a steel U-bolt and matching washers and nuts, this kit supports a secure reinstallation of the universal joint at the driveshaft connection point. It is a practical replacement when servicing driveline vibration, looseness, or damaged retaining hardware on vehicles such as the Ford F-150, Ford F-250, and Ford E-150 Econoline.

What It Helps Fix

• Loose or damaged universal joint retaining hardware
• Driveshaft service after U-joint replacement
• Wear-related clamping issues at the bearing cap
• Noise or vibration caused by compromised driveline attachment
• Restoration of original-style U-joint fastening on supported Ford and Mercury vehicles

Installation Notes and Tips

Verify the universal joint bearing cap outside diameter before installation; this part is specified for 1.125 in. caps. Inspect the driveshaft yoke, U-joint caps, and threads for wear or damage before assembly. Follow the vehicle service manual for torque and fastening procedures, and confirm proper seating after installation.

Quality Assurance

Dorman manufactures this kit as a direct replacement service part for specified applications, using quality components selected for reliable performance and durability. Part number 81004 is built to match original hardware requirements for the listed Ford and Mercury fitments.