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VAC Motorsports Adjustable Rear Upper Control Arm Kit, BMW E36/E46

True coilover–specific upper rear control arms for BMW E36/E46. Adjustable, rebuildable, billet 6061—made in the USA.

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Add Rod End Dust Boot $39.99 additional charge

Price: ~~$349.95~~ $319.95

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SKU: VAC-33-UCA-E46

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Description

When converting a BMW E36 or E46 to a true rear coilover suspension, the factory upper rear control arm becomes a limiting factor. Designed around OEM spring and sway bar architecture, it introduces compliance, deflection, and geometry compromises that undermine the performance gains of high-end coilover systems.

The VAC Upper Rear Control Arms are engineered specifically for true coilover conversions with rear sway bar delete, restoring proper suspension geometry while eliminating unwanted slop under load.

Why These Matter

Big-ticket suspension components mean nothing if the supporting geometry isn't right. These control arms are designed to:

Maintain consistent rear alignment under hard acceleration, braking, and cornering
Improve tire contact and predictability on track or aggressive street setups
Eliminate flex and compliance inherent in factory-style arms

Key Features

Purpose-built for true coilover rear suspension conversions
Not compatible with OEM-style rear suspension
Fully adjustable for precise camber and alignment tuning
Rebuildable design for long-term serviceability
CNC-machined from billet 6061 aluminum
Designed, machined, and assembled in-house by VAC Motorsports
Manufactured in the USA at VAC's Philadelphia facility

Ideal For

Track-focused E36 / E46 builds
Drift and grip cars running rear sway bar delete
Drivers who want real suspension performance--not Instagram spec sheets

This is the correct solution when converting an E36 or E46 to a true coilover rear suspension. No compromises. No band-aids. Just proper engineering backed by results.

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