Monroe 58639 Shock Absorber and Coil Spring Assembly - Rear

Monroe Load Adjusting Shock Absorber Overview

The Monroe Load Adjusting Shock Absorber 58639 is engineered to provide reliable suspension performance for Chevrolet and GMC full-size SUVs. Designed specifically for models like the Chevrolet Suburban 1500, Tahoe, and GMC Yukon series, this shock absorber assembly helps maintain vehicle stability and ride comfort under varying load conditions.

• Part Number: 58639
• Brand Line: Load Adjusting Shock Absorber
• Compressed Length: 15 inches
• Extended Length: 23.625 inches
• Travel Length: 8.625 inches
• Dust Shield: Yes, made of metal for enhanced protection
• Upper and Lower Mounting: Loop bushing & sleeve mount (9/16" sleeve ID x 1.5/8" sleeve OAL)
• No compressed or extended bumper stops

Load Adjusting Shock Absorber Product Line Details

The Monroe Load Adjusting Shock Absorber line is designed to adapt to changing vehicle loads, providing consistent damping performance. This product line focuses on maintaining optimal suspension control and ride quality by adjusting to the weight carried by the vehicle. The 58639 shock absorber assembly fits within this line, offering a balance of durability and load-responsive handling for Chevrolet Suburban 1500, Tahoe, and GMC Yukon models.

Technical Description and Features

This suspension shock absorber and coil spring assembly features a compressed length of 15 inches and an extended length of 23.625 inches, allowing for a travel length of 8.625 inches. The metal dust shield protects internal components from debris and corrosion, extending the service life of the shock absorber. Both upper and lower mounts use loop bushing and sleeve mounts with precise dimensions (9/16" sleeve ID x 1.5/8" sleeve OAL) to ensure secure and proper fitment. The absence of compressed or extended bumper stops and hydraulic lockouts indicates a design focused on smooth, consistent damping without additional mechanical stops.

Compatible Vehicles and Applications

• Chevrolet Suburban 1500
• Chevrolet Tahoe
• GMC Yukon
• GMC Yukon XL 1500

This shock absorber assembly is intended for use in the rear suspension of these full-size SUVs, helping to manage load variations and improve ride stability.

Common Suspension Issues Addressed

• Reduced vehicle stability under heavy load conditions
• Excessive body roll or sway during cornering
• Uneven or harsh ride quality
• Premature wear of suspension components due to improper damping
• Increased noise or vibration from worn shock absorbers

Installation Notes and Tips

• Ensure compatibility with vehicle make and model before installation
• Inspect mounting bushings and sleeves for wear and replace if necessary
• Use proper tools to avoid damage to loop bushing and sleeve mounts
• Follow manufacturer torque specifications for mounting hardware
• Check alignment after installation to maintain proper suspension geometry

Quality Assurance and Warranty

Monroe shock absorbers are manufactured to meet or exceed OEM standards for durability and performance. The Load Adjusting Shock Absorber 58639 undergoes rigorous testing to ensure consistent damping and long service life. Warranty coverage details should be confirmed with the original equipment manufacturer or authorized distributor.