Monroe 911134 Shock Absorber - Rear

Monroe Reflex Light Truck Shock Absorber 911134

Monroe Reflex Light Truck Shock Absorber 911134 is built for rear suspension service on select Ford F-150 applications. It uses ASD valving technology that responds to changing road input to help control body motion in vehicles with a higher center of gravity.

Key Features

• ASD valving adjusts damping response to absorb impact changes
• Helps reduce roll and dive in light truck suspension use
• Rear shock absorber for select Ford F-150 and Ford F-150 Heritage models
• Metal dust shield included for added protection
• Upper stem mount with 3/8"-16 thread pitch
• Lower loop bushing and sleeve mount with 12 mm sleeve ID
• Compressed length: 16.125 in; extended length: 27.5 in; travel length: 11.375 in

Product Details

The Monroe Reflex Light Truck Shock Absorber line is tuned for trucks that carry a higher center of gravity and see frequent suspension movement. Part number 911134 uses Monroe ASD valving to react to impact conditions and help keep rear suspension behavior more controlled on rough pavement, load changes, and uneven surfaces. This part cross-references KYB 344375 and Rancho RS55234 for the same application.

Compatible With 2004 Ford F-150 Heritage, rear; 2003 Ford F-150, rear; and 1997-2002 Ford F-150, rear. Use 911134 when servicing the rear suspension on these Ford F-150 applications with the listed GVW exclusions.

What It Helps Address

• Excessive rear-end bounce after bumps
• Body roll during cornering
• Nose dive and rear suspension instability under braking and load transfer
• Reduced damping control from worn rear shocks
• Uneven ride quality on daily driving or work-truck use

Installation Notes

Verify rear fitment by year, model, and GVW before ordering. This shock uses a stem upper mount and a lower loop bushing and sleeve mount, so confirm the mounting style and sleeve dimensions match the vehicle. Check compressed and extended length against the suspension travel requirements before installation.

Quality Assurance

Monroe Reflex Light Truck Shock Absorber 911134 is part of Monroe’s Reflex line, which uses ASD valving for responsive damping control in light truck applications. Confirmed fitment includes 2004 Ford F-150 Heritage rear, 2003 Ford F-150 rear, and 1997-2002 Ford F-150 rear within the listed GVW exclusions.