Monroe 34690 Shock Absorber - Rear

Monroe Gas-Magnum Rear Shock for HD Trucks

Monroe Gas-Magnum Shock Absorber 34690 is built for rear suspension control on heavy-duty Chevrolet Silverado and GMC Sierra trucks. It is designed for midsize and full-size trucks and vans, with a firmer damping feel that avoids a harsh ride.

The Gas-Magnum line focuses on higher fluid capacity and efficient shock control. With up to twice the fluid capacity of standard 1-inch bore shocks, this Monroe shock absorber can manage heat and repeated suspension movement more effectively in demanding truck use.

Key Features

• Rear suspension shock absorber for truck applications
• Monroe Gas-Magnum line for firm control and balanced ride quality
• Up to twice the fluid capacity of standard 1-inch bore shocks
• Metal dust shield included for added protection
• Extended bumper stop included
• Loop bushing and sleeve upper and lower mounts
• Compressed length: 16 in.; extended length: 26 in.; travel length: 10 in.
• Part number 34690 for direct catalog reference

Detailed Description

Monroe 34690 is a rear suspension shock absorber engineered for Chevrolet Silverado 2500 HD, GMC Sierra 2500 HD, and related Silverado and Sierra HD applications. It also covers select Silverado 1500 HD and Sierra 1500 HD models, including Classic variants, with fitment notes for vehicles without electronic adjustable suspension or without 4-wheel steering where specified. This part cross-references KYB 344385 for the same application.

The shock uses LS47 upper and lower loop bushing and sleeve mounts with a 9/16-inch sleeve ID and 1.5/8-inch sleeve OAL. The metal dust shield helps protect the shaft area, while the extended bumper stop adds suspension protection at full extension. Monroe Gas-Magnum Shock Absorber 34690 is a practical choice for rear ride control on 1999-2010 Chevrolet Silverado and GMC Sierra truck platforms.

What This Shock Absorber Helps Address

• Excessive rear-end bounce over rough pavement
• Reduced control when hauling or towing
• Rear suspension instability on heavy-duty trucks
• Harsh or inconsistent damping from worn shocks
• Noise and wear related to tired rear suspension damping

Installation Notes and Fitment

• Fits 2001-2010 Chevrolet Silverado 2500 HD, rear
• Fits 2001-2010 GMC Sierra 2500 HD, rear
• Fits 2007 Chevrolet Silverado 1500 HD Classic, rear; fits vehicles without electronic adjustable suspension
• Fits 2007 Chevrolet Silverado 2500 HD Classic, rear
• Fits 2007 GMC Sierra 1500 HD Classic, rear; fits vehicles without electronic adjustable suspension
• Fits 2007 GMC Sierra 2500 HD Classic, rear
• Fits 2005-2006 Chevrolet Silverado 1500 HD, rear; fits vehicles without electronic adjustable suspension
• Fits 2001-2003 Chevrolet Silverado 1500 HD, rear; fits vehicles without electronic adjustable suspension
• Fits 2005-2006 GMC Sierra 1500 HD, rear; fits vehicles without electronic adjustable suspension
• Fits 2001-2003 GMC Sierra 1500 HD, rear; fits vehicles without electronic adjustable suspension
• Fits 1999-2004 Chevrolet Silverado 2500, rear; fits vehicles without 4 Wheel Steering, excluding premium models
• Fits 1999-2004 GMC Sierra 2500, rear; fits vehicles without 4 Wheel Steering, excluding premium models

Verify mount style, suspension configuration, and rear application before ordering. Monroe 34690 is a rear shock absorber for the listed truck fitments only.

Quality Assurance

Monroe backs this shock absorber with a limited lifetime warranty. The Gas-Magnum product line is built for truck and van suspension service where controlled damping and durability matter.