Monroe 58411 Shock Absorber and Coil Spring Assembly - Rear

Monroe Load Adjusting Shock Absorber Overview

The Monroe Load Adjusting Shock Absorber 58411 is designed to provide reliable suspension performance for select Buick, Chevrolet, Oldsmobile, and Pontiac models. This suspension shock absorber and coil spring assembly is engineered to maintain vehicle stability and comfort under varying load conditions.

• Compressed length: 12.5 inches
• Extended length: 20 inches
• Travel length: 7.5 inches
• Includes plastic dust shield for protection
• Extended bumper stop included for enhanced durability
• Upper mounting: Cross pin mount with closed ends, 5/16" hole ID
• Lower mounting type: L1/cp3
• Parts pack included (P00576)

Detailed Product Description

The Monroe Load Adjusting Shock Absorber part number 58411 features a compressed length of 12.5 inches and an extended length of 20 inches, providing a travel length of 7.5 inches to accommodate suspension movement effectively. This assembly includes a plastic dust shield to protect internal components from dirt and debris, extending the service life of the shock absorber. The extended bumper stop helps absorb impact and prevents damage during full compression. The upper mounting uses a cross pin mount with closed ends and a 5/16" hole inner diameter, while the lower mounting is coded L1/cp3, ensuring proper fitment and secure installation.

Compatible Vehicles and Applications

This shock absorber and coil spring assembly is compatible with a range of classic and late-model vehicles, including Buick Bonneville, Century, Regal; Chevrolet El Camino, Monte Carlo; Oldsmobile Cutlass, Cutlass Calais, Cutlass Cruiser, Cutlass Salon, Cutlass Supreme, LeMans; and Pontiac Grand Am, Grand LeMans, Grand Prix. The Monroe 58411 is specifically designed to meet the suspension requirements of these models, ensuring proper ride height and handling characteristics.

Load Adjusting Shock Absorber Product Line

The Monroe Load Adjusting Shock Absorber line is engineered to automatically adjust damping force based on vehicle load, improving ride quality and handling under varying conditions. This product line is ideal for vehicles that experience frequent changes in load weight, providing consistent suspension performance. Part number 58411 is a representative component of this line, combining shock absorber and coil spring assembly features to maintain vehicle stability and comfort.

Common Suspension Issues Addressed

• Excessive body roll during cornering
• Reduced ride comfort under heavy load
• Uneven tire wear due to poor suspension response
• Bottoming out or harsh impacts from road irregularities
• Decreased vehicle stability and control

Installation Notes and Tips

• Verify compatibility with your specific Buick, Chevrolet, Oldsmobile, or Pontiac model before installation
• Inspect mounting points for wear or damage prior to assembly
• Use the included parts pack (P00576) for a complete installation
• Ensure proper torque specifications on upper and lower mounts
• Check dust shield integrity to maintain protection against debris

Quality Assurance and Warranty

Monroe shock absorbers are manufactured to meet strict quality standards for durability and performance. The Load Adjusting Shock Absorber 58411 undergoes rigorous testing to ensure reliable operation under various driving conditions. Warranty coverage details should be confirmed with the manufacturer or authorized distributor.