Monroe 34658 Shock Absorber - Rear

Monroe Gas-Magnum Shock Absorber Overview

The Monroe Gas-Magnum Shock Absorber 34658 is engineered to provide reliable suspension performance for Ford F-150 and F-150 Heritage models. Designed to maintain vehicle stability and control, this shock absorber features durable construction and precise fitment specifications.

• Compatible with Ford F-150 and F-150 Heritage
• Compressed length: 16 inches
• Extended length: 27.5 inches
• Travel length: 11.5 inches
• Includes metal dust shield for enhanced protection
• Lower mounting type: Loop bushing & sleeve mount (12mm sleeve ID x 1.5" sleeve OAL)
• Upper mounting type: Stem mount with 2.3/8" stem length and 3/8"-16 thread pitch
• Part number: 34658

About the Gas-Magnum Shock Absorber Line

The Monroe Gas-Magnum Shock Absorber line is designed to deliver consistent damping performance using pressurized nitrogen gas technology. This helps reduce shock fade and improves vehicle handling under various driving conditions. The 34658 model incorporates these features to meet the suspension demands of Ford F-150 and F-150 Heritage trucks, ensuring a balance between ride comfort and control.

Detailed Product Description

This Monroe 34658 shock absorber offers a compressed length of 16 inches and an extended length of 27.5 inches, providing a travel length of 11.5 inches. It includes a metal dust shield to protect internal components from debris and extend service life. The lower mounting uses a loop bushing and sleeve mount with a 12mm inner diameter and 1.5-inch overall length sleeve, while the upper mounting features a stem mount with a 2.3/8-inch stem length and 3/8"-16 thread pitch. The absence of bumper stops and hydraulic lockout indicates a design focused on smooth suspension travel without additional mechanical limits.

Common Suspension Issues Addressed

• Reduced vehicle stability and control on rough roads
• Excessive body roll during cornering
• Increased wear on tires due to poor shock absorption
• Decreased ride comfort from worn or damaged shocks
• Noise and vibration caused by failing suspension components

Installation Notes and Tips

• Verify compatibility with Ford F-150 or F-150 Heritage before installation
• Ensure proper alignment of loop bushing and sleeve mount at the lower end
• Use correct torque specifications for stem mount fasteners (3/8"-16 thread pitch)
• Inspect dust shield for damage during installation to maintain protection
• Replace shocks in pairs to maintain balanced suspension performance

Quality Assurance and Warranty

Monroe manufactures the Gas-Magnum Shock Absorber 34658 to meet OEM standards for durability and performance. The metal dust shield enhances longevity by protecting internal components from contaminants. While specific warranty details are not provided here, Monroe typically offers limited warranties on their shock absorbers to cover defects in materials and workmanship.