Monroe 34985 Shock Absorber - Rear

Monroe Gas-Magnum Shock Absorber Overview

The Monroe Gas-Magnum Shock Absorber part number 34985 is engineered to provide reliable suspension performance for Chevrolet and GMC trucks. Designed specifically for models like the Chevrolet C1500 and GMC K2500, this shock absorber helps maintain vehicle stability and control under various driving conditions.

• Compressed length: 16.125 inches
• Travel length: 10.625 inches
• Extended length: 26.75 inches
• Includes a metal dust shield for enhanced durability
• Lower mount: Loop bushing & sleeve mount with 9/16" sleeve ID x 1.5/8" sleeve OAL
• Upper mount: Cross pin mount, closed ended with 5/16" hole ID (both ends) x 2.7/8"
• No compressed or extended bumper stops

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 handling for trucks like the Chevrolet C2500 and GMC K3500. The 34985 model incorporates a metal dust shield to protect internal components from debris and extend service life.

Detailed Product Description

The Monroe Gas-Magnum Shock Absorber 34985 features a compressed length of 16.125 inches and an extended length of 26.75 inches, providing a travel length of 10.625 inches. This range allows for effective absorption of road impacts and helps maintain tire contact with the road surface. The metal dust shield safeguards the piston rod from dirt and corrosion, which is critical for trucks operating in rugged environments. The lower mounting uses a loop bushing and sleeve mount, ensuring a secure fit with a 9/16" sleeve inner diameter and 1.5/8" outer sleeve length. The upper mount is a cross pin type with a closed end and 5/16" hole diameter, designed for durability and ease of installation.

Common Applications and Problem Solving

• Reduces excessive bouncing and improves ride comfort on Chevrolet C35 and GMC K1500 trucks
• Minimizes body roll during cornering and heavy load conditions
• Restores suspension control for worn or damaged shocks on Chevrolet C3500 and GMC K2500
• Prevents premature tire wear caused by unstable suspension movement
• Enhances vehicle stability when towing or hauling heavy loads

Installation Notes and Tips

• Verify compatibility with your specific Chevrolet or GMC truck model before installation
• Ensure mounting points match the loop bushing and cross pin mount specifications
• Inspect related suspension components for wear during replacement
• Use proper torque specifications to avoid mounting damage
• Consider professional installation if unfamiliar with suspension systems

Quality Assurance and Warranty

Monroe Gas-Magnum Shock Absorbers are manufactured to meet or exceed OEM standards for durability and performance. The part number 34985 undergoes rigorous quality control to ensure consistent operation. While specific warranty details may vary, Monroe typically offers coverage against defects in materials and workmanship. Consult product documentation or manufacturer resources for exact warranty terms.