Rancho RS55286 Shock Absorber - Rear

Rancho RS5000X Rear Shock for F-150

The Rancho RS5000X RS55286 is a rear suspension shock absorber built for select Ford F-150 and Lincoln Mark LT applications. It uses Rancho’s RS5000X valving approach and advanced compression control to improve handling on pavement and stability on rough roads.

Compatible with rear applications on the 2004-2014 Ford F-150 and 2006-2008 Lincoln Mark LT, this shock is a direct-fit option for drivers looking to restore rear suspension response. The RS55286 part number is also a useful reference when comparing replacement shocks for the same vehicle coverage.

Key Features

• Rear suspension shock absorber for select Ford F-150 and Lincoln Mark LT models
• Rancho RS5000X valving for balanced on-road and off-road performance
• Advanced compression functionality for improved damping response
• Dust shield included to help protect the shock body
• Extended bumper stop included; compressed bumper stop not included
• Loop bushing and sleeve mounts at both ends with 12 mm sleeve ID
• Extended length: 27.22 in; compressed length: 16.43 in; travel length: 10.79 in

Product Details

The Rancho RS5000X line is engineered for drivers who want controlled rear suspension movement without changing the factory-style layout. On the Ford F-150 and Lincoln Mark LT, the RS55286 shock supports rear axle motion with a loop-to-loop mounting design and a dust shield for added protection in everyday driving conditions. This part cross-references Monroe Shocks & Struts (e.g., 550063, 911262) for the same application.

What It Helps Address

• Excessive rear bounce after bumps or dips
• Loose or unsettled rear-end feel on uneven roads
• Reduced control when towing or carrying load in the rear suspension
• Worn shock performance that can affect ride quality
• Need for a direct replacement rear shock on compatible F-150 and Mark LT models

Installation Notes

• Fits 2014 Ford F-150, rear.
• Fits 2004-2013 Ford F-150, rear.
• Fits 2004-2008 Ford F-150, rear, with rear raised height 0 in.
• Fits 2006-2008 Lincoln Mark LT, rear.
• Verify mount style, sleeve dimensions, and rear ride-height configuration before installation.
• Use the RS55286 part number to confirm application match during replacement selection.

Quality Assurance

Rancho RS5000X shocks are built around a specialized valving design and compression tuning intended to deliver consistent damping performance across on-road and off-road use. The RS55286 follows the listed OE-style mounting format and application coverage for the specified Ford F-150 and Lincoln Mark LT rear positions.