Monroe 34521 Shock Absorber - Rear

Monroe Gas-Magnum Rear Shock Absorber

Monroe Gas-Magnum Shock Absorber 34521 is built for midsize and full-size trucks and vans that need firm rear suspension control without a harsh ride. It is a direct-fit rear shock for select Ram and Dodge Ram applications, including Ram 1500, Ram 2500, Ram 3500, Dodge Ram 1500, Dodge Ram 2500, and Dodge Ram 3500.

Key Features

• Gas-Magnum shock absorber design for rear suspension use
• Up to twice the fluid capacity of standard 1-inch bore shocks
• Metal dust shield included to help protect the shaft area
• Loop bushing and sleeve upper and lower mounts
• Extended length: 27.5 in.; compressed length: 16.5 in.
• Travel length: 11 in.
• Upper and lower mounting code: LS47

Product Details

The Monroe Gas-Magnum line is engineered for heavier-duty truck and van applications where consistent damping matters. Part number 34521 uses a larger fluid capacity than standard 1-inch bore shocks, which helps it manage suspension movement with less effort while maintaining controlled ride quality. The rear shock absorber design, combined with loop bushing and sleeve mounts at both ends, makes it a fitment-specific replacement for Ram and Dodge Ram rear suspension service.

This part cross-references Rancho RS55269 and KYB 344401 for the same application.

Vehicle Fitment

• Fits 2011-2013 Ram 2500, rear
• Fits 2012 Ram 1500, rear
• Fits 2011-2012 Ram 3500, rear
• Fits 2003-2010 Dodge Ram 2500, rear
• Fits 2003-2010 Dodge Ram 3500, rear
• Fits 2006-2008 Dodge Ram 1500, rear

Common Repair Uses

• Rear suspension bounce or excessive rebound
• Reduced control when towing or carrying load
• Uneven ride quality over rough pavement
• Worn or leaking rear shock absorber replacement
• Restoring stable handling on Ram and Dodge Ram trucks

Installation Notes

Verify compressed length, extended length, and mount style before installation. Monroe 34521 uses loop bushing and sleeve mounts at both ends, so confirm the sleeve dimensions match the vehicle’s rear shock brackets. Check the dust shield condition and inspect surrounding suspension components for wear before completing the repair.

Quality Assurance

Monroe Gas-Magnum shock absorbers are designed for truck and van suspension service with controlled damping and durable construction. Part number 34521 is listed with limited lifetime warranty coverage on the confirmed fitment applications.