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Rancho RS999903 Suspension Strut and Coil Spring Assembly - Rear Right
| Brand | Rancho RS999903 |
|---|---|
| Position | Rear Right |
| Body Length | 14.17 |
| Body Type | SS3 |
| Compressed Bumper Stop | No |
| Compressed Length | 14.67 |
| Dust Shield Included | Yes |
| Extended Bumper Stop | No |
| Extended Hydraulic Lockout | No |
| Extended Length | 21.6 |
| Lower Mounting Description | Loop Bushing Mount - 5/8" Bushing ID X 1.5/16" Bushing OAL |
| Parts Pack | P01141 |
| Reserve Tube Diameter | 2.13 |
| Travel Length | 6.93 |
| Upper Mounting Description | Loop Bushing Mount - 5/8" Bushing ID X 1.5/16" Bushing OAL |
| Fits | Ford · 4 vehicles |
Loaded assembly. All-in-one design simplifies installation.
Levels and lifts. Adds clearance for larger wheels and tires.
Dust shield included. Helps protect the strut from road debris.
Rancho RS999903 Rear Right Strut Assembly
Rancho RS999903 is a loaded suspension strut and coil spring assembly for the rear right position on select Ford Expedition models. It combines the strut and spring into one unit to simplify replacement and restore rear ride height on 2003-2006 Ford Expedition applications.
Key Features
- Loaded strut and coil spring assembly for the rear right side
- Raises the rear suspension 0.75 in. on listed Ford Expedition applications
- Dust shield included for added protection
- Loop bushing upper and lower mounts with 5/8 in. bushing ID and 1.5/16 in. bushing OAL
- Extended length: 21.6 in.; compressed length: 14.67 in.; travel length: 6.93 in.
- Body type SS3 with 2.13 in. reserve tube diameter
Detailed Description
Rancho RS999903 is an all-in-one rear suspension strut and coil spring assembly built for 2003-2006 Ford Expedition, rear right fitment. It is engineered to level the rear suspension while adding a modest lift, which helps maintain proper stance and clearance for larger wheels and tires. The loaded design reduces the number of separate components needed during service and provides a direct replacement path for the listed application.
This part number, RS999903, is specified for the rear right position and is matched to the Ford Expedition platform for the 2003, 2004, 2005, and 2006 model years. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.
What It Helps Address
- Rear sag or uneven ride height on Ford Expedition models
- Loss of suspension support from a worn rear strut assembly
- Need for additional rear clearance for larger wheels and tires
- Time-consuming service from replacing strut and spring separately
Installation Notes and Tips
Verify rear right fitment before installation on 2003-2006 Ford Expedition vehicles. Confirm mount style, bushing dimensions, and suspension configuration against the original assembly before removal. Because this is a loaded assembly, it is suited to direct replacement of the rear right strut and spring unit rather than rebuilding the original component.
Quality Assurance
Rancho RS999903 is built as a complete suspension assembly for the specified Ford Expedition rear right application. The listed dimensions, mount details, and included dust shield support accurate parts matching for service work on 2003-2006 Ford Expedition models.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2006 | Ford | Expedition | Rear Right | Raises Rear 0.75 (in) |
| 2005 | Ford | Expedition | Rear Right | Raises Rear 0.75 (in) |
| 2004 | Ford | Expedition | Rear Right | Raises Rear 0.75 (in) |
| 2003 | Ford | Expedition | Rear Right | Raises Rear 0.75 (in) |
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