Front Shock Absorber for 1987-1996 Ford F-250 & More - Rancho RS55165

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$90.99
MPN: RS55165
UPC: 039703008433
Item Package Quantity: 1
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Rancho Suspension Shock Absorber P/N:RS55165
Rancho Suspension Shock Absorber P/N:RS55165
$90.99

Smooth out the ride and tighten up body control with the Rancho RS5000X shock absorber (RS55165), a front-position damper built for both on- and off-road driving. This Rancho shock absorber drops in as a direct-fit replacement for the 1987-1996 Ford F-250, the 1997 Ford F-250 HD, and the 1985-1997 Ford F-350 — see the Buyer's Guide tab for engine-level fitment.

At its heart is Rancho's exclusive Cross Tuned technology, pairing a rebound valving system with an advanced compression phase to improve overall handling and performance. Exclusive Progressive Engagement Valving is custom-tuned per vehicle to help soften initial low-speed impacts and minimize a rough ride.

  • Strong and durable: 16mm nitro-carburized piston rod resists scuffs and corrosion, with double-welded loops at stress areas, a 35mm sintered iron piston, and a polyvinyl protective boot.
  • Handles temperature swings: large 2-1/4 in twin-tube body filled with all-weather fluid for cooler operation and internal tolerance from -40 to 248°F.
  • Reduces fade: nitrogen gas pressurized to 150 PSI helps minimize air-to-oil mixing, foaming, and damping fade.
  • Smoother response: polyurethane rebound bumper and rubber bushings help absorb harshness, while a fluon-banded piston enhances responsiveness.

Backed by Rancho's Limited Lifetime Warranty.

Interchange: 34732 · 37055 · 911055 · RS5165 · N8023

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

34732, 37055, 911055, RS5165, N8023

Frequently Asked Questions

Will this Rancho shock fit my 1987-1996 Ford F-250?

Yes — RS55165 is a front-position direct-fit for the 1987-1996 Ford F-250. Check the Buyer's Guide tab for the full fitment and to confirm your engine.

What is Cross Tuned technology?

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

Is this a gas-charged shock?

Yes. It's nitrogen gas pressurized to 150 PSI, which helps minimize air-to-oil mixing, foaming, and damping fade for more consistent performance.

What signs mean my shock may need replacing?

Common signs include excessive bouncing after bumps, nose-dive under braking, a rough or floaty ride, or visible fluid leaking from the shock body.

Should I replace shocks in pairs?

This listing is for one shock. For balanced ride control, it's best practice to replace both shocks on the same axle together as a matched pair.