SKP SK521979 Suspension Control Arm - Rear Left Upper, Rear Right Upper or Rear Upper

SKP Rear Upper Control Arm for Trailblazer, Envoy, Rainier, SSR, and Bravada

The SKP Suspension Control Arm, part number SK521979, is a direct-fit suspension replacement for select Chevrolet, GMC, Buick, and Oldsmobile applications. It helps restore rear suspension geometry, steering precision, and ride quality when the original control arm is worn or damaged.

Key Features

• High-strength steel construction for structural durability
• Corrosion-resistant finish for long-term service in harsh road conditions
• Engineered for proper wheel alignment and stable handling
• Direct replacement for rear upper suspension positions on listed vehicles
• SK521979 cross-references 521979 for the same application

Detailed Description

SKP SK521979 is a suspension control arm built to replace worn rear upper control arms and restore the suspension’s original alignment characteristics. It is compatible with 2002-2009 Chevrolet Trailblazer rear left upper and rear right upper applications, 2002-2009 GMC Envoy rear left upper and rear right upper applications, 2004-2007 Buick Rainier rear left upper and rear right upper applications, 2003-2006 Chevrolet SSR rear upper applications, and 2002-2004 Oldsmobile Bravada rear left upper and rear right upper applications. This part is also available for Trailblazer models with and without Auto Air Level Control, depending on the listed position and notes.

For buyers searching for a rear upper control arm for Chevrolet Trailblazer, GMC Envoy, or Buick Rainier, SK521979 provides a direct replacement option that supports proper suspension movement and alignment retention.

What It Helps Fix

• Uneven tire wear caused by worn rear suspension geometry
• Loose or imprecise steering feel from suspension wear
• Noisy or unstable rear suspension operation
• Alignment issues after control arm deterioration
• Ride quality loss from fatigued suspension components

Installation Notes and Tips

Verify the vehicle position and equipment notes before ordering, especially for Trailblazer applications with or without Auto Air Level Control and SSR models with RPO Code G67 exclusions. Confirm rear left upper, rear right upper, or rear upper placement against the removed part before installation. A professional alignment is recommended after replacement to restore correct suspension settings.

Quality Assurance

SKP manufactures this control arm from high-strength steel and applies a corrosion-resistant coating to support durability in everyday driving conditions. The part is built to match the listed fitment requirements for a direct replacement installation.