Monroe 58604 Shock Absorber and Coil Spring Assembly - Rear

Monroe Load Adjusting Shock Absorber 58604

Monroe 58604 is a rear load adjusting shock absorber for light trucks that tow or carry changing loads. It uses a heavy-gauge calibrated spring to add control as road conditions and vehicle weight become more demanding.

Key Features

• Load adjusting shock absorber for rear suspension applications
• Heavy-gauge calibrated spring helps respond to changing load and road conditions
• Dust shield included; metal construction
• Compressed length: 15.75 in.; extended length: 26.375 in.
• Travel length: 10.625 in.
• Upper mount: loop bushing mount with 5/8 in. bushing ID and 1.5/16 in. bushing OAL
• Lower mount: loop bushing and sleeve mount with 12 mm sleeve ID and 1.1/2 in. sleeve OAL

Product Details

This Monroe Load Adjusting Shock Absorber line is built for trucks that see variable payloads, helping maintain more consistent rear suspension control when towing or hauling. Monroe 58604 is a rear shock absorber and coil spring assembly with a loop-to-loop mounting layout, metal dust shield, and dimensions that matter for proper suspension replacement. This part cross-references Monroe Shocks & Struts (e.g., 58604) for the same application.

Compatible With 1990-1996 Ford F-150 rear and 1992-1996 Ford F-250 rear. Monroe 58604 is a direct fit for these rear suspension applications when the vehicle is used for towing and hauling service.

Common Uses

• Rear-end sag under cargo or trailer load
• Reduced control over rough roads with added weight
• Excessive bounce after load changes
• Need for more stable rear suspension response in towing and hauling use

Installation Notes

Verify compressed length, extended length, and mounting codes before installation. Confirm upper and lower loop bushing dimensions match the vehicle’s suspension points, and inspect surrounding bushings and hardware for wear before replacing the shock absorber. Use the rear position only for the listed Ford applications.

Quality Assurance

Monroe is a recognized suspension brand with a product line focused on load-adjusting control for light trucks. Part number 58604 is built to support changing road and weight conditions through a calibrated spring design and application-specific mounting geometry.