Monroe 58638 Shock Absorber and Coil Spring Assembly - Rear

Overview of Monroe Load Adjusting Shock Absorber 58638

The Monroe Load Adjusting Shock Absorber part number 58638 is designed specifically for heavy-duty Chevrolet and GMC trucks. This suspension shock absorber and coil spring assembly provides reliable performance for models such as the Sierra 1500 HD, Sierra 2500, Silverado 1500 HD, and Silverado 2500.

• Compressed length: 16 inches
• Extended length: 25.875 inches
• Travel length: 9.875 inches
• Metal dust shield included for enhanced protection
• Loop bushing and sleeve mount with 9/16" sleeve ID and 1.5/8" sleeve OAL on both upper and lower mounts
• Compatible with Chevrolet and GMC heavy-duty truck models

Monroe Load Adjusting Shock Absorber Product Line

The Load Adjusting Shock Absorber line by Monroe is engineered to provide consistent suspension performance under varying load conditions. This product line is tailored to maintain vehicle stability and ride quality by adjusting damping characteristics as the load changes. The 58638 shock absorber assembly fits within this line, offering a balance of durability and adaptability for heavy-duty Chevrolet and GMC trucks.

Detailed Product Description

The Monroe 58638 shock absorber and coil spring assembly features a compressed length of 16 inches and an extended length of 25.875 inches, allowing for a travel length of 9.875 inches. It includes a metal dust shield to protect internal components from debris and extend service life. Both the upper and lower mounts utilize loop bushing and sleeve mounts with precise dimensions (9/16" sleeve ID x 1.5/8" sleeve OAL), ensuring secure and proper fitment. This assembly does not include bumper stops or hydraulic lockouts, focusing on straightforward, reliable suspension support for heavy-duty applications.

Applications and Problem Solving

• Restores suspension performance on Chevrolet Sierra 1500 HD and Silverado 2500 trucks
• Reduces excessive body roll and improves vehicle stability under load
• Addresses worn or damaged shock absorbers causing rough ride quality
• Helps maintain proper ride height and suspension travel for heavy-duty use
• Protects suspension components from dust and debris with metal dust shield

Installation Notes and Tips

• Ensure compatibility with Chevrolet and GMC heavy-duty truck models listed
• Verify mounting codes LS47 for both upper and lower mounts before installation
• Use appropriate tools to handle loop bushing and sleeve mounts securely
• Inspect surrounding suspension components during installation for wear or damage
• Follow vehicle manufacturer torque specifications for mounting hardware

Quality Assurance and Warranty

Monroe shock absorbers are manufactured to meet or exceed OEM standards for durability and performance. The Load Adjusting Shock Absorber 58638 undergoes rigorous testing to ensure consistent operation under heavy-duty conditions. Warranty coverage details should be confirmed with the product documentation or manufacturer, as it may vary by application and region.