Dorman 540-072 Suspension Ball Joint - Rear Lower

Dorman 540-072 Rear Lower Ball Joint

Dorman 540-072 is a threaded suspension ball joint built as a standard replacement for the original equipment on select vehicles. It is precision-engineered and tested for dependable rear suspension service on applications such as the Buick Rendezvous, Pontiac Aztek, and Pontiac Montana.

Key Features

• Threaded, press-in suspension ball joint for rear lower applications
• Standard replacement design for OE-style service
• Aluminum construction with a gray finish
• Rubber dust boot included
• Mounting hardware included
• Tapered stud with 12 mm wrench size
• Non-greaseable design with no grease fitting
• No castle nut, cotter pin, bushings, or washers included

Detailed Description

This Dorman suspension ball joint, part number 540-072, is made for rear lower suspension locations and uses a press-in mounting type with a threaded body. The aluminum housing and rubber dust boot support everyday suspension service, while the tapered stud design helps maintain a secure connection at the control arm interface. It is a direct replacement style part for vehicles including the 2002-2007 Buick Rendezvous, 2001-2005 Pontiac Aztek, and 2000-2004 Pontiac Montana. This part cross-references MOOG Chassis Products K80305 for the same application.

Vehicle Fitment

• Fits 2002-2007 Buick Rendezvous, rear lower, w/Independent Rear Suspension
• Fits 2005-2006 Buick Terraza, rear lower, w/Independent Rear Suspension
• Fits 2005-2006 Chevrolet Uplander, rear lower, w/Independent Rear Suspension
• Fits 2005-2006 Pontiac Montana, rear lower, w/Independent Rear Suspension
• Fits 2005-2006 Saturn Relay, rear lower
• Fits 2001-2005 Pontiac Aztek, rear lower
• Fits 2002-2004 Oldsmobile Silhouette, rear lower
• Fits 2000-2004 Pontiac Montana, rear lower

What It Helps Repair

• Rear suspension looseness or play at the ball joint
• Clunking or knocking from the rear lower suspension area
• Uneven tire wear related to worn suspension geometry
• Steering or handling instability caused by worn joint movement
• Failed inspection due to excessive suspension wear

Installation Notes

Install this part at the rear lower suspension position only on the listed applications. Verify the press-in fit, threaded engagement, and stud taper before final assembly. Because this design does not use a grease fitting, routine lubrication is not required. Confirm vehicle-specific fitment for the Buick Rendezvous, Pontiac Aztek, Pontiac Montana, and other listed models before installation.

Quality Assurance

Dorman manufactures this ball joint as a tested replacement part for specific OE applications. The 540-072 is engineered to match the service needs of the original suspension component on the listed vehicles and is backed by Dorman’s product quality standards.