Moog RK641505 Suspension Control Arm and Ball Joint Assembly - Front Left Upper

OE-Style Front Left Upper Control Arm

The Moog RK641505 is a front left upper suspension control arm and ball joint assembly built for Chevrolet Express, GMC Savana, Silverado 2500, and Sierra 2500 applications. It uses forged steel construction, a press-in ball joint, and rubber bushings to support stable front suspension operation on the vehicle.

Key Features

• Forged steel control arm for structural strength
• Pre-greased with a grease fitting included for serviceability
• Press-in ball joint with threaded stud design
• Bushings included with rubber bushing material
• Mounting hardware included
• Black corrosion-resistant finish
• Non-adjustable OE replacement design

Detailed Product Overview

Built for front left upper suspension service, the Moog RK641505 is engineered as a direct replacement control arm and ball joint assembly for select Chevrolet and GMC full-size vans and trucks. The forged steel arm provides a rigid mounting structure, while the pre-greased ball joint and included grease fitting support routine maintenance. This part cross-references Dorman OE Solutions 521-975 for the same application. The RK641505 is a practical choice for restoring front suspension geometry on Chevrolet Express 2500, Chevrolet Express 3500, GMC Savana 2500, and GMC Savana 3500 models, as well as 1999-2000 Chevrolet Silverado 2500 and GMC Sierra 2500 front left upper positions.

What It Helps Address

• Front-end looseness or wandering caused by worn upper control arm components
• Clunking or knocking from a worn ball joint or bushing
• Uneven tire wear related to suspension wear
• Steering instability on high-mileage Chevrolet Express and GMC Savana vehicles
• Restoration of proper front left upper suspension support after wear or corrosion

Installation Notes and Tips

Fits 2020 Chevrolet Express 2500, front left upper; 2020 Chevrolet Express 3500, front left upper; 2006-2019 Chevrolet Express 2500, front left upper; 2003-2019 Chevrolet Express 3500, front left upper; 2006-2019 GMC Savana 2500, front left upper; 2003-2019 GMC Savana 3500, front left upper; 2003-2005 Chevrolet Express 2500, front left upper except vehicles with a 7,300 lb GVW; 2003-2005 GMC Savana 2500, front left upper except vehicles with a 7,300 lb GVW; 1999-2000 Chevrolet Silverado 2500, front left upper; and 1999-2000 GMC Sierra 2500, front left upper. Verify position and GVW before installation, and inspect related suspension wear items during service.

Quality Assurance

Moog premium control arms are engineered for structural strength and corrosion protection. The RK641505 is built with forged steel construction, included bushings, and serviceable grease fitting details to support dependable OE-style replacement performance.