SPC Adjustable Upper Control Arms 2007-2014 FJ Cruiser | 2003-2024 Toyota 4Runner | 2003-2009 Lexus GX470| 2010-2023 Lexus GX460

Designed, engineered, tested, and assembled in Colorado, USA, the SPC Performance Adjustable Upper Control Arms are built to deliver superior strength, alignment precision, and off-road performance. These arms are ideal for lifted trucks and SUVs, improving suspension travel, handling, tire wear, and wheel-well clearance for oversized tires.

Key Features & Benefits

• Improved Suspension Geometry & Handling:
  Corrects caster and camber alignment angles affected by suspension lifts to restore factory ride quality and driveability. Built-in positive caster ensures your lifted vehicle tracks straight and stable, eliminating “wandering” on the road.

• Forged Steel Strength & Durability:
  Heavy-duty forged steel construction provides maximum strength, rigidity, and clearance around the spring bucket — perfect for extreme off-road use and demanding environments.

• Maintenance-Free Ball Joints:
  Equipped with an all-new fully sealed, maintenance-free ball joint featuring a 25% larger stud cross-section for superior strength, E-Nickel corrosion protection, and an impressive 80° of articulation. Extended threads ensure compatibility with knuckle gusset kits.

• xAxis™ Sealed Flex Joints:
  New xAxis™ bonded rubber bushings allow for extended suspension travel while improving noise, vibration, and harshness (NVH) performance for a quieter, smoother ride.

• Enhanced Clearance for Oversized Tires:
  The patented ball joint design centers the tire perfectly in the wheel well and allows maximum clearance for 33” tires without trimming the fender or frame. Combine with OE lower arm adjusters for precise placement.

• Extended Life & Smooth Operation:
  One-piece polymer race ball joint with modern grease formula delivers low turning torque, quiet operation, and reduced wear, performing like OEM under all conditions.

Specifications

• Front Adjustment Range:
  Camber ±2.00° / Caster 0.00° to +4.00°

• Fitment: 1 set required per axle

• Construction: Forged steel, corrosion-resistant finish

• Sold as: Pair (left and right arms)

• U.S. Patent: No. 7,513,514

Compatibility & Installation Notes

When lifting your truck or SUV, caster and camber angles are altered, causing poor alignment and uneven tire wear. SPC adjustable upper control arms are the solution—restoring alignment geometry while providing strength and articulation for off-road and street performance.
If replacement lower adjustment cams are required, see SPC part #25440 or #25435, depending on model year.