Dorman 540-048 Suspension Ball Joint - Front Right Upper

Dorman 540-048 Suspension Ball Joint

Dorman 540-048 is a bolt-in suspension ball joint for specific Cadillac front suspension applications. It is precision-engineered and tested as a direct replacement for the original equipment part on select Cadillac DeVille and Cadillac Fleetwood models.

Key Features

• Fits 1961-1976 Cadillac DeVille, front right upper
• Fits 1965-1976 Cadillac Fleetwood, front right upper
• Bolt-in mounting type with tapered stud design
• Steel construction with grey finish
• Greaseable design with grease fitting included
• Dust boot, castle nut, cotter pin, and mounting hardware included
• Standard suspension grade replacement
• Part number 540-048

Detailed Description

This Dorman suspension ball joint is built for front right upper suspension service on Cadillac DeVille and Cadillac Fleetwood vehicles from the 1960s and 1970s. The steel body, tapered stud, and bolt-in mounting style support a secure OE-style replacement for worn front suspension joints. The greaseable design and included dust boot help support serviceability and protection in demanding road conditions. This part cross-references Mevotech Supreme MS50547 for the same application.

Common Repair Uses

• Front suspension looseness or play at the upper control arm
• Clunking or popping noises from the front right suspension
• Uneven tire wear related to worn ball joint movement
• Steering instability caused by excessive joint wear
• Restoring proper front-end geometry on Cadillac DeVille and Fleetwood models

Installation Notes and Tips

Verify the front right upper position before installation and confirm the stud thread length, wrench size, and bolt-in mounting dimensions against the original part. The included castle nut, cotter pin, grease fitting, dust boot, and mounting hardware support a complete service replacement. After installation, inspect alignment and suspension fasteners to confirm proper operation.

Quality Assurance

Dorman states this ball joint is precision-engineered and rigorously tested to provide a reliable replacement for the original equipment part on specific vehicles.