Adjustable Upper Control Arms for Toyota 4Runner & FJ Cruiser

Designed, engineered, tested, and assembled in Colorado, the SPC Performance adjustable upper control arms are built to enhance your vehicle's suspension system. Featuring forged steel construction, these control arms deliver maximum strength and durability for demanding off-road and on-road conditions. The advanced design includes maintenance-free ball joints with a 25% larger stud cross-section and an E-Nickel coating for superior corrosion resistance, ensuring reliable performance over time. The inclusion of bonded rubber sleeves with xAxis™ sealed flex joints allows for extended suspension travel and improves noise, vibration, and harshness (NVH) characteristics, resulting in a smoother ride and better handling. These control arms are engineered with an adjustable range that corrects alignment angles—camber ±2.00° and caster from 0.00° to +4.00°—restoring factory ride quality and enabling the tire to be centered properly within the wheel well for maximum clearance, especially important for oversized tires up to 33 inches in diameter. The design also provides positive caster for lifted vehicles, improving drivability and steering stability. The fully sealed architecture of the ball joints keeps grease in and contaminants out, offering a maintenance-free solution that meets high standards of strength and longevity. The arms' improved clearance design allows for easier installation around spring buckets and increases articulation to 80°, optimizing suspension performance. These control arms are sold as a pair and are compatible with 4th and 5th Generation Toyota 4Runner, FJ Cruiser, and Lexus GX models. As with all innovative automotive parts, product appearance and features may vary due to ongoing design improvements. For additional adjustment, replacement lower control arm cams are available under part numbers #25440 or #25435, depending on your vehicle year. This product is built to meet rigorous performance standards and is backed by a US patent, ensuring a high-quality upgrade for your vehicle's suspension system.

Features:

• New ball joint with 25% larger stud cross-section for superior strength and E-Nickel coating for corrosion resistance, offering 80° of articulation and extended threads compatible with knuckle gusset kits

• Adjustment range combined with OE adjusters corrects alignment angles, improves drivability, reduces tire wear, and maximizes clearance for 33-inch tires without modifications

• One-piece polymer race ball joint with modern grease formula ensures quiet operation, low turning torque, and extended lifespan comparable to OE standards

• xAxis™ sealed flex joints in bonded rubber bushings allow for extended suspension travel and improved noise, vibration, and harshness (NVH) characteristics

• Forged steel arm construction provides maximum strength and clearance with built-in positive caster for lifted vehicle alignment correction

• Fully sealed architecture keeps grease in and contaminants out, delivering a maintenance-free ball joint solution

Air Freight Prohibited: false
Not Carb Approved: false
Carb Acknowledgement Required: false
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Regular Stock: t

Review our Shipping Policy for delivery details, shipping costs and exclusions.

Eligibility, exclusions, applicable fees and exceptions are detailed in our Return Policy. Restrictions apply to special-order and custom products.

Proposition 65 Warnings: cancer and reproductive harm www.p65warnings.ca.gov