Mevotech GS40108 Suspension Trailing Arm - Rear Upper

Rear Upper Suspension Trailing Arm for Ford and Lincoln

Mevotech GS40108 is a steel rear upper suspension trailing arm built for OE-style replacement on select Ford, Lincoln, and Mercury vehicles. It uses rubber bushings at both ends to help restore rear suspension geometry, handling response, and ride quality.

Key Features

• Steel construction for durable rear suspension service
• Rubber bushings included at both ends
• Rear upper suspension trailing arm application
• Black finish
• Non-adjustable design
• No ball joint included
• Fits 1998-2011 Ford Crown Victoria, rear upper
• Fits 1998-2011 Lincoln Town Car, rear upper
• Fits 1998-2011 Mercury Grand Marquis, rear upper
• Fits 2003-2004 Mercury Marauder, rear upper

Detailed Description

Mevotech GS40108 is a rear upper suspension trailing arm for vehicles using a bushing-to-bushing layout. The steel arm and rubber bushing construction are selected to replace worn rear suspension components and help maintain proper alignment of the rear axle location on Ford Crown Victoria, Lincoln Town Car, Mercury Grand Marquis, and Mercury Marauder applications. This part cross-references MOOG Chassis Products RK641800 for the same application. Mevotech GS40108 is also referenced by OE-style part numbers used across the same platform, including 3W1Z5500BA and 5W1Z5500AA.

What This Part Helps Address

• Rear suspension clunking from worn bushings
• Loose or unstable rear-end feel
• Uneven tire wear related to rear suspension movement
• Restoring factory-style rear upper arm geometry
• Handling changes caused by fatigued trailing arm bushings

Installation Notes and Tips

Install GS40108 in the rear upper position only. Verify the existing arm length, bushing style, and mounting points before installation. Because this is a non-adjustable trailing arm with bushings at both ends, proper torque should be applied at ride height when the suspension design calls for it. Confirm vehicle-specific fitment for your Ford Crown Victoria, Lincoln Town Car, Mercury Grand Marquis, or Mercury Marauder before service.

Quality Assurance

Mevotech Original Grade parts are built as OE-style replacement components for suspension service. GS40108 is engineered for direct replacement use on the listed applications and is backed by Mevotech’s product standards for chassis components.