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Rancho RS5421 Steering Damper - Front
| Brand | Rancho RS5421 |
|---|---|
| Position | Front |
| Compressed Bumper Stop | No |
| Compressed Length | 16.43 |
| Dust Shield Included | Yes |
| Extended Bumper Stop | No |
| Extended Hydraulic Lockout | No |
| Extended Length | 28.15 |
| Lower Mounting Code | L1 |
| Lower Mounting Description | Loop Bushing Mount - 5/8" Bushing ID X 1.5/16" Bushing OAL |
| Parts Pack | P01385 |
| Reserve Tube Diameter | 1.858 |
| Travel Length | 11.72 |
| Upper Mounting Code | LS26 |
| Upper Mounting Description | Loop Bushing & Sleeve Mount - 12MM Sleeve ID X 1.1/2" Sleeve OAL |
| Product line | RS5000 |
| Fits | Ford · 6 vehicles |
RS5000 series. Built for off-road driving, towing, and street use.
Dust shield included. Helps protect the steering damper from debris.
Loop bushing mounts. Upper and lower ends use bushing-and-sleeve attachment points.
Cross-references KYB SS10202, Monroe Shocks & Struts SC2975 and 8C3Z3E651E for the same application. See all 5.
Rancho RS5000 Steering Damper for Super Duty
The Rancho RS5000 steering damper is built for drivers who need steadier steering response on the road and on rough terrain. This RS5421 steering stabilizer helps reduce wheel shimmy, bump steer, and vibration while supporting towing, off-road use, and daily driving.
Key Features
- Steering damper for front-end steering control
- Compressed length: 16.43 in.; extended length: 28.15 in.
- Travel length: 11.72 in. for steering movement control
- Reserve tube diameter: 1.858 in. for consistent damping performance
- Dust shield included for added protection
- Upper mount: loop bushing and sleeve mount with 12 mm sleeve ID
- Lower mount: loop bushing mount with 5/8 in. bushing ID
Product Details
Part of the Rancho RS5000 line, this steering stabilizer is engineered for applications where steering feedback and front-end vibration need to be controlled without changing the vehicle’s basic steering layout. The RS5000 series is positioned for off-road driving, towing, and street use, making it a practical choice for Ford F-250 Super Duty and Ford F-350 Super Duty front steering service. If you are replacing a worn OE-style stabilizer, Rancho RS5421 provides the mounting dimensions and travel range needed for the listed Super Duty applications.
This part cross-references Monroe Shocks & Struts (e.g., SC2975) for the same application.
What It Helps Address
- Front-end wheel shimmy
- Bump steer over uneven pavement or trail surfaces
- Steering vibration at speed
- Driver fatigue from constant steering correction
- Loose or unstable steering feel in towing and off-road conditions
Installation Notes and Fitment
Fits 2008-2010 Ford F-250 Super Duty, front. Fits 2008-2010 Ford F-350 Super Duty, front. Confirm the upper and lower mounting codes, compressed length, and extended length against the vehicle before installation. RS5421 is a front steering damper application for these Super Duty trucks, and the RS5000 line is commonly selected when restoring steering stability on Ford F-250 Super Duty and Ford F-350 Super Duty models.
Quality Assurance
Rancho RS5000 steering stabilizers are built as application-specific steering components for controlled damping in demanding driving conditions. RS5421 is engineered around the listed mount style and dimensional specifications to support proper fitment on the confirmed Ford applications.
| Year | Make | Model | Drive Type | Position | Notes |
|---|---|---|---|---|---|
| 2010 | Ford | F-250 Super Duty | 4WD | Front | Replaces OE; RS5000 |
| 2010 | Ford | F-350 Super Duty | 4WD | Front | Replaces OE; RS5000 |
| 2009 | Ford | F-250 Super Duty | 4WD | Front | Replaces OE; RS5000 |
| 2009 | Ford | F-350 Super Duty | 4WD | Front | Replaces OE; RS5000 |
| 2008 | Ford | F-250 Super Duty | 4WD | Front | Replaces OE; RS5000 |
| 2008 | Ford | F-350 Super Duty | 4WD | Front | Replaces OE; RS5000 |
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