Rear Shock Absorber for 2011-2016 Ford F-350 Super Duty & More - Rancho RS55261

$90.99
Rancho Suspension Shock Absorber RS55261
Rancho Suspension Shock Absorber RS55261 - view 2
Rancho Suspension Shock Absorber RS55261 - view 3
Rancho Suspension Shock Absorber RS55261 - view 4
Rancho Suspension Shock Absorber RS55261
Rancho Suspension Shock Absorber RS55261 - view 2
Rancho Suspension Shock Absorber RS55261 - view 3
Rancho Suspension Shock Absorber RS55261 - view 4

Vehicles this part fits
    Part number: RS55261
    UPC: 039703006071
    Condition: New
    Weight: 6.80 LBS
    Item Package Quantity: 1
    $90.99
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    Rancho Suspension Shock Absorber P/N:RS55261
    Rancho Suspension Shock Absorber P/N:RS55261
    $90.99
    $90.99

    Smooth out rough terrain with the RANCHO shock absorber RS55261, a rear RS5000X damper that fits the 1999-2016 Ford F-250 Super Duty, the 1999-2004 Ford F-350 Super Duty, and the 2011-2016 Ford F-350 Super Duty. See the "Vehicles it fits" section for engine-level fitment. Built around Rancho's exclusive Cross Tuned technology — a rebound valving system paired with an advanced compression phase — it's designed to improve overall handling and performance on and off road.

    Key features:

    • Cross Tuned & Progressive Engagement Valving: custom-tuned per vehicle to help reduce initial impacts at low speeds and minimize a rough ride.
    • Strong construction: 16mm nitro-carburized piston rod to resist scuffs and corrosion, double-welded loops at stress areas, a 35mm sintered iron piston, and a polyvinyl protective boot.
    • Twin-tube design: large 2 1/4-inch twin-tube body filled with all-weather fluid for cooler operation, rated to withstand internal temperatures of -40 to 248°F.
    • Nitrogen charged: pressurized to 150 PSI to minimize air-to-oil mixing and help reduce damping fade and foaming.

    A polyurethane rebound bumper and rubber bushings help absorb ride harshness, while the fluon-banded piston and a low-friction, self-lubricating seal support quicker rebound and smoother compression. Backed by Rancho's Limited Lifetime Warranty. Sold individually; replacing both shocks across an axle as a matched pair is recommended for balanced ride control.

    Interchange: RS5261 · 23160C

    This part cross-references / interchanges with the following part numbers:

    RS5261, 23160C

    Frequently Asked Questions

    What vehicles does the RANCHO absorber RS55261 fit?

    It's a rear shock for the 1999-2016 Ford F-250 Super Duty and the 1999-2004 and 2011-2016 Ford F-350 Super Duty. See the "Vehicles it fits" section for engine-level details.

    Is this a front or rear shock?

    This RS5000X RS55261 is a rear-position suspension shock absorber for the listed applications.

    What is Rancho's Cross Tuned technology?

    It's Rancho's exclusive rebound valving system combined with an advanced compression phase, designed to improve overall handling and performance both on and off road.

    What are signs my shock may need replacing?

    Signs a shock may need replacing include excessive bouncing after bumps, nose-diving under braking, and reduced ride control. If a worn shock is the cause, this RS55261 replaces it.

    Do I need to buy two?

    This shock is sold individually. Replacing both shocks on the same axle as a matched pair is recommended for even, balanced ride control.

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