Dorman 905-511 Lateral Arm and Ball Joint Assembly - Rear Left or Rear Right

Dorman 905-511 Rear Lateral Arm Assembly

Dorman 905-511 is a rear lateral arm and ball joint assembly built for direct replacement on select Buick, Cadillac, Oldsmobile, and Pontiac vehicles. It combines a stamped steel arm, pressed attachment points, and a pre-installed ball joint to restore rear suspension geometry on applications such as the Buick LeSabre, Cadillac DeVille, and Pontiac Bonneville.

Key Features

• Stamped steel control arm construction for OE-style fit and strength
• Ball joint included and already installed for a faster service replacement
• Threaded ball joint stud with pressed attachment type
• Greaseable design with pre-greased components
• Rubber bushings included for rear suspension mounting points
• Direct replacement for rear left and rear right positions on listed vehicles

Detailed Description

This lateral arm and ball joint assembly is engineered and tested as a replacement for the original equipment part on specific rear suspension applications. It is designed for vehicles that use a stamped steel lateral link with a pressed-in ball joint and rubber bushings, helping maintain proper rear wheel location and suspension articulation. This part number, 905-511, also cross-references MOOG Chassis Products CK660168 for the same application.

Compatible With select 1997-2011 Buick, Cadillac, Oldsmobile, and Pontiac rear suspension applications, including Fits 2006-2011 Buick Lucerne, rear left and Fits 2006-2011 Buick Lucerne, rear right. It also fits 2000-2005 Buick LeSabre, rear left/right, 2000-2005 Buick Park Avenue, rear left/right, 2000-2005 Cadillac DeVille, rear left/right, 2000-2005 Pontiac Bonneville, rear left/right, 2000-2004 Cadillac Seville, rear left/right, and 2001-2003 Oldsmobile Aurora, rear left/right. For 2nd Design vehicles with a 1-piece link, it fits 1997-1999 Buick Park Avenue, rear left/right, 1997-1999 Buick Riviera, rear left/right, 1999 Cadillac DeVille, rear left/right, 1998-1999 Cadillac Seville, rear left/right, and 1997-1999 Oldsmobile Aurora, rear left/right.

What It Helps Address

• Rear suspension looseness from worn lateral arm bushings
• Clunking or knocking from a failing ball joint
• Uneven rear wheel tracking caused by worn suspension links
• Excessive rear-end movement over bumps or during cornering
• Service delays when the arm and ball joint must be replaced together

Installation Notes and Tips

Verify rear left or rear right position before ordering, and confirm whether the vehicle uses the standard design or the 2nd Design with a 1-piece link. Inspect adjacent suspension components, fasteners, and alignment settings during replacement. Because this assembly is greaseable and pre-greased, follow the vehicle service procedure for lubrication points after installation.

Quality Assurance

Dorman designs this assembly as a precision-engineered replacement and subjects it to testing to support reliable OE-style service on the listed applications. The stamped steel construction, installed ball joint, and included bushings are selected to match the needs of the original rear suspension layout.