The SPL Parts Titanium Series Adjustable Rear Upper Arms (Part #SPL RUA G29) are engineered to dramatically increase rear camber adjustment range for high-performance street and track applications. These arms are a must-have for lowered vehicles where the factory eccentric adjustment is insufficient to bring camber back into proper specification.
By replacing soft OEM bushings with precision FK PTFE-lined spherical rod ends and utilizing SPL’s 360-degree rotating clamp system, these rear upper arms deliver precise alignment control, eliminate bushing deflection, and maintain consistent geometry under hard cornering, acceleration, and braking.
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Brand: SPL Parts
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Part Number: SPL RUA G29
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Position: Rear Upper
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Component Type: Adjustable rear upper control arms
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Series: SPL Titanium Series
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Adjustment Range: Significantly increased rear camber adjustment
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Center Links: Gun-drilled 2024 aluminum to reduce unsprung weight
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Clamp Design: 6061-T6 aluminum 360-degree rotating clamp system
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Hardware: Blue anodized titanium socket head cap screws
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Rod Ends: Low-friction 3-piece FK PTFE-lined spherical heim joints
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Operating Temp Range: -65 F to 325 F
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Adjustment Method: On-car adjustment using a simple 3/16-inch Allen key
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Sold As: Two pairs (rear upper lateral arms and rear upper trailing arms)
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Manufacturing: Made in the USA
Performance Benefits
- Greatly increases rear camber adjustment range
- Eliminates OEM bushing deflection and alignment drift
- Maintains precise rear suspension geometry under load
- Simplifies alignment changes with jam nut-free clamp design
- Improves grip, stability, and tire wear on street and track
The FK PTFE-lined spherical bearings provide quiet operation, smooth articulation, and extremely high load capacity, making these arms suitable for everything from daily-driven performance cars to dedicated track builds.
Construction & Materials
- Gun-drilled 2024 aluminum links, clamps, and clevises
- 6061-T6 aluminum rotating clamp assemblies
- Blue anodized titanium socket head cap screws
- FK PTFE-lined spherical rod ends for maintenance-free performance
Vehicle Fitment
- Toyota Supra A90 GR (2020+)
- BMW Z4 G29 (2019+)
- BMW G20 / G21 / G22 / G23 / G24 (2018+)
- BMW G42 (2021+)