Whiteline Upper Outer Control Arm Bushing – Ford/Mazda Models (inc. 2013+ Ford Focus)
Restore Rear Axle Precision on Ford and Mazda Platforms
The rear upper control arm outer bushing on Ford Focus and Mazda 3 / Mazda 6 platform vehicles is a wear-sensitive geometry position. When this bushing degrades, the upper arm develops angular play at its outer mount — allowing rear camber variation under cornering loads. Whiteline’s polyurethane replacement restores the geometric consistency needed for consistent rear axle behavior.
DETAILS
- Polyurethane compound for rear upper control arm outer position
- Covers Ford Focus (incl. 2013+ Mk3) and related Mazda platforms
- Reduces rear camber variation under cornering loads
- Improves rear axle precision and handling consistency
- Limited Lifetime Warranty
Ford Focus and Mazda Platform Coverage
The Ford Focus Mk3 (2013+) and related Mazda 3/6 models share compatible rear upper control arm geometry at the outer mount position. A single Whiteline bushing spec covers both brands — practical coverage for the large installed base of these popular platforms.
Focus ST and RS Applications
The Focus ST and RS are performance variants where rear suspension precision directly affects handling balance. Worn upper arm outer bushings on these models produce rear instability and inconsistency that’s particularly noticeable at the driving speeds these cars are used at. Polyurethane replacement is a standard improvement for performance-focused Focus owners.
Rear Camber and Tire Contact
The rear upper arm outer bushing position influences how camber changes through suspension travel. A worn bushing allows excessive camber variation — the outside rear tire changes angle under cornering load rather than maintaining the aligned value. Polyurethane keeps it consistent.
Why Choose Whiteline
Whiteline has been engineering suspension components from their facility in Australia since 1979. Every product in their catalog is developed with a clear goal: measurable improvement in handling, stability, and tyre contact. Whiteline’s polyurethane bushings, sway bars, control arms, and alignment correction kits are engineered using finite element analysis and validated on track before they reach the market. Their components are direct-fit, bolt-on solutions designed for enthusiasts who want real performance gains without fabrication or custom work.
The RallySport Take
A targeted bushing for a common wear point on popular Ford and Mazda platforms. Direct improvement in rear axle consistency with a simple polyurethane replacement. Budget an afternoon for the job — bushing replacement is not complicated but does require the correct press tools and clean installation technique. Apply grease to all polyurethane-to-metal interfaces and assemble at ride height for correct bushing set. The improvement in chassis feel is immediate and the polyurethane will outlast whatever rubber is in there now.
What’s in the Box
- Polyurethane compound for rear upper control arm outer position
- Covers Ford Focus (incl. 2013+ Mk3) and related Mazda platforms
- Reduces rear camber variation under cornering loads
- Improves rear axle precision and handling consistency
Fitment
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2007-2013 | ? | Mazdaspeed3) | All |
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