Monroe 58618 Shock Absorber and Coil Spring Assembly - Rear

Monroe Load Adjusting Shock Absorber 58618 Overview

The Monroe Load Adjusting Shock Absorber part number 58618 is designed for specific Ford and Mazda truck models, including the B3000, B4000, and Ranger. This suspension shock absorber and coil spring assembly offers precise load handling and improved ride control for these vehicles.

• Compressed length: 15.75 inches
• Extended length: 26.125 inches
• Travel length: 10.375 inches
• Includes metal dust shield for enhanced durability
• Upper mounting: Loop bushing mount (5/8" bushing ID x 1.5/16" bushing OAL)
• Lower mounting: Loop bushing & sleeve mount (12mm sleeve ID x 1.5" sleeve OAL)
• No compressed or extended bumper stops
• Parts pack included (P00827)

About the Load Adjusting Shock Absorber Line

The Monroe Load Adjusting Shock Absorber line is engineered to provide adaptive suspension performance by adjusting to varying load conditions. This part 58618 is part of that line, offering tailored damping characteristics that help maintain vehicle stability and comfort under different payloads, specifically suited for Ford B3000, B4000, and Ranger trucks.

Detailed Product Description

This suspension shock absorber and coil spring assembly features a compressed length of 15.75 inches and an extended length of 26.125 inches, providing a travel length of 10.375 inches. The metal dust shield protects internal components from debris and corrosion, extending the service life of the shock absorber. The upper mounting uses a loop bushing mount with a 5/8 inch bushing inner diameter and 1.5/16 inch outer length, while the lower mounting employs a loop bushing and sleeve mount with a 12mm sleeve inner diameter and 1.5 inch outer length. This configuration ensures secure attachment and proper alignment within the suspension system. The absence of compressed or extended bumper stops indicates a design focused on smooth travel without additional mechanical limits.

Common Applications and Problem Solving

• Restores proper suspension travel and damping on Ford B3000, B4000, and Ranger trucks
• Addresses issues with uneven ride height or sagging under load
• Reduces excessive body roll and improves vehicle stability
• Mitigates noise and vibration caused by worn or damaged shocks
• Enhances control when carrying varying payloads

Installation Notes and Tips

• Ensure compatibility with Ford B3000, B4000, and Ranger models before installation
• Inspect mounting bushings and sleeves for wear and replace if necessary
• Use proper tools to avoid damage to loop bushing mounts during installation
• Verify correct orientation of the shock absorber according to mounting codes L1 (upper) and LS26 (lower)
• Check for proper torque specifications to maintain secure fitment

Quality Assurance and Warranty

Monroe Load Adjusting Shock Absorber part number 58618 is manufactured to meet OEM standards for durability and performance. The inclusion of a metal dust shield helps protect internal components from environmental damage. While specific warranty details are not provided here, Monroe typically offers coverage against defects in materials and workmanship. It is recommended to consult the product packaging or Monroe’s official documentation for exact warranty terms.