Moog RK641506 Suspension Control Arm and Ball Joint Assembly - Front Right Upper

Moog RK641506 Front Right Upper Control Arm

Moog RK641506 is a front right upper suspension control arm and ball joint assembly for select Chevrolet Express, GMC Savana, Silverado 2500, and Sierra 2500 applications. Built with forged steel construction, pre-greased components, and corrosion-focused design details, it is made for OE-style suspension service on high-mileage work vans and trucks.

Key Features

• Forged steel control arm for structural strength
• Pre-greased with a grease fitting included for serviceability
• Rubber bushings included for suspension isolation
• Press-in ball joint with threaded stud design
• Mounting hardware included
• Black finish for a clean undercar appearance
• Compatible with front right upper suspension positions on select GM platforms

Detailed Description

This Moog suspension control arm and ball joint assembly is engineered for front right upper replacement on 1999-2020 Chevrolet and GMC applications listed below. The forged steel arm, rubber bushings, and pre-greased service points support a direct replacement approach for worn upper control arm assemblies. Part number RK641506 is also referenced by Dorman OE Solutions 521-976 for the same application.

Compatible With 2020 Chevrolet Express 2500, front right upper; 2020 Chevrolet Express 3500, front right upper; 2006-2019 Chevrolet Express 2500, front right upper; 2003-2019 Chevrolet Express 3500, front right upper; 2006-2019 GMC Savana 2500, front right upper; 2003-2019 GMC Savana 3500, front right upper; 2003-2005 Chevrolet Express 2500, front right upper; 2003-2005 GMC Savana 2500, front right upper; 1999-2000 Chevrolet Silverado 2500, front right upper; and 1999-2000 GMC Sierra 2500, front right upper.

Part number RK641506 is a practical OE replacement choice for Chevrolet Express and GMC Savana front suspension service, as well as Silverado 2500 and Sierra 2500 upper control arm repair.

Common Problems This Part Can Address

• Excessive front-end looseness from a worn upper control arm assembly
• Clunking or knocking from deteriorated bushings or ball joint wear
• Uneven tire wear related to suspension geometry issues
• Steering wander or reduced directional stability
• Corrosion-related replacement needs on aging suspension components

Installation Notes and Tips

• Verify front right upper position and exact vehicle application before installation.
• Inspect adjacent suspension components, including the lower control arm, tie rod ends, and alignment-related parts.
• Because the ball joint is press-in, proper shop tools are recommended for installation.
• Perform a professional wheel alignment after replacement.
• Confirm fitment carefully on 2003-2005 Chevrolet Express 2500 and GMC Savana 2500 models, which have a 7,300 lb GVW exception noted in the catalog data.

Quality Assurance

Moog premium control arms are engineered for structural strength and corrosion protection for foreign and domestic nameplates. RK641506 is built as a service replacement assembly for the listed GM applications and follows OE-style fitment expectations for front suspension repair.