KSP PERFORMANCE Adjustable Upper Control Arms for 2-4" Lift Tacoma/Hilux – Forged Aluminum, 3 Ball Joints

KSP PERFORMANCE aluminum adjustable upper control arms are a one-piece forged upgrade for 2–4" lifted Toyota Tacoma, Hilux, Prerunner and Fortuner models, featuring three ball joints and OEM-style rubber bushings for improved alignment and durability.

These upper control arms replace factory units to restore correct camber and caster after a lift, reduce tire rub, and provide a longer service life than typical welded steel arms. Machined from forged aluminum and equipped with protective dust covers and pre-installed rubber bushings, the KSP UCA kit is designed for street and mild off-road use while remaining bolt-on for straightforward installation at home or in a shop.

How do these arms improve handling after lifting a truck?

The adjustable design lets you correct wheel alignment changes caused by 2–4" lifts, restoring proper camber and improving tire contact patch. That translates to more predictable steering, reduced uneven tire wear, and better overall vehicle control.

• Adjustability to dial in camber and caster after lift kits.
• Three ball joints offer increased articulation for lifted suspensions.
• Forged one-piece aluminum resists bending and corrosion.

What makes KSP PERFORMANCE’s construction different from OEM or welded arms?

These arms are forged as a single piece of aluminum, eliminating weld seams that can corrode or fail under stress. CNC machining guarantees precise fitment while the tower-shaped dust covers and pre-installed boots protect critical ball joint components from dirt and moisture.

• One-piece forged aluminum resists rust and metal fatigue longer than welded steel.
• CNC-machined surfaces for consistent tolerances and bolt-on alignment.
• Advanced dust-boot shape prevents contaminants from damaging sockets.

Are the bushings and ball joints serviceable or replaceable?

The KSP UCA uses OEM-style rubber bushings that are readily available, and each arm includes three ball joints with protective covers. If a component becomes worn, commonly available replacement bushings and ball joints fit the arm, simplifying maintenance and reducing long-term cost.

• OEM equivalent bushing numbers listed for easy sourcing.
• Pre-installed rubber bushings reduce vibration and noise.
• Protective ball-joint covers extend service intervals by keeping out debris.

How difficult is installation and what support does KSP offer?

Installation is 100% bolt-on and typically takes 4–5 hours; one competent technician can complete the job at home or in a garage. KSP PERFORMANCE provides 24-hour online customer service and one-year accessory replacement for quality-related issues.

• 100% bolt-on design for straightforward fitment on compatible models.
• Estimated 4–5 hour install time for DIY or professional mechanics.
• After-sales service with accessory replacement coverage within one year.

Who is this for: Drivers who have installed 2–4" suspension lifts on Toyota Tacoma, Hilux, Prerunner or Fortuner models (2004–2023) and need a durable, adjustable upper control arm to correct alignment, reduce tire rub, and upgrade durability. It's well suited for enthusiasts who prefer aftermarket parts that are serviceable, corrosion-resistant, and designed to work with lift-related suspension geometry changes while remaining street-friendly.