SPC Light Racing Upper Control Arms for 2003-2021 Lexus GX470/GX460

SPC Light Racing Upper Control Arms for 2003-2023 Lexus GX470/GX460

Part: 35480
Includes: Adjustable Upper Control Arms (Pair)

Designed, engineered, tested, and assembled in Colorado, SPC Performance adjustable upper control arms are loaded with impressive features that improve suspension travel, handling, and tire wear while centering the tire in the wheel well for maximum clearance needed for oversized tires. These premium control arms feature maintenance-free ball joints and free-pivoting xAxis™ sealed flex joints in bonded rubber sleeves, providing correction of alignment angles and restoration of factory ride quality. The forged steel design delivers the strength and durability needed for the most demanding off-road environments.

When vehicles are lifted, caster and camber angles are affected, leading to poor handling characteristics such as ‘wandering’ and premature tire wear. Without proper correction, lifted SUVs suffer from compromised drivability and reduced tire life. SPC adjustable control arms solve these problems by providing positive caster built-in for lifted vehicles, restoring proper alignment angles. The patented ball joint design allows the tire to be positioned correctly in the wheel well to maximize placement for oversized tires and avoid fender trimming.

Adjustment and Alignment Features

• Arm’s adjustment range combines with OE adjusters to correct alignment angles for improved drivability and reduced tire wear
• Makes it possible to move the tire forward to maximize clearance for 33″ tires without frame or fender modifications
• Positive caster provision for lifted vehicles built-in to restore proper alignment angles
• Improved clearance around the spring bucket for better suspension articulation

Strength and Durability Construction

• Forged steel arm construction ensures structural integrity under heavy articulation
• Designed to withstand the most demanding off-road environments and heavy-duty use
• Superior build quality from Colorado-based engineering and assembly

Advanced Ball Joint Technology

• New ball joint has 25% larger stud cross section than OE for superior strength
• E-Nickel coating provides superior corrosion protection
• Provides 80° of articulation for maximum suspension travel and flexibility
• Extended threads make these arms compatible with knuckle gusset kits
• New fully sealed ball joint architecture keeps grease in and contaminants out for a maintenance-free joint
• One piece polymer race ball joint with modern grease formula ensures quiet smooth operation and low turning torque

Performance and Ride Quality

• New xAxis™ sealed flex joints in bonded rubber bushings allow for extended suspension travel and superior noise vibration and harshness (NVH) characteristics
• Restores factory ride quality while providing enhanced off-road capability
• Maintenance-free design eliminates the need for regular greasing and servicing

Specifications

• Front Adjustment Range: Camber ±2.00° / Caster 0.00° to +4.00°
• Ball Joint Articulation: 80°
• Construction: Forged Steel
• Ball Joint Stud: 25% larger cross section than OE with E-Nickel coating
• Required: 1 per axle
• Package: Sold as a pair

These precise adjustment ranges allow you to fine-tune your alignment for optimal tire wear, handling, and clearance. The generous caster adjustment range of 0.00° to +4.00° is specifically designed to compensate for lift kits, while the ±2.00° camber adjustment ensures your tires sit perfectly flat on the road surface. The 80° ball joint articulation provides the flexibility needed for extreme off-road situations while maintaining on-road stability.

Fitment Notes

• Fits 2003-2009 Lexus GX470
• Fits 2010-2023 Lexus GX460
• Required: 1 per axle (sold as a pair)
• Designed to work with OE lower control arms and adjustment cams
• If replacement lower adjustment cams are needed, see part #25440 or #25435 depending on year
• Compatible with knuckle gusset kits due to extended ball joint threads
• Ideal for vehicles with lift kits requiring alignment correction

Patent: US Patent No. 7,513,514

Frequently Asked Questions

Why do I need adjustable upper control arms for my lifted Lexus GX?
When you lift your GX470 or GX460, the suspension geometry changes, affecting caster and camber angles. This leads to poor handling, tire wear, and a “wandering” steering feel. SPC adjustable upper control arms restore proper alignment angles, improving drivability and extending tire life.

Will these control arms work with oversized tires?
Yes, the SPC control arms are specifically designed to maximize clearance for oversized tires. The adjustment range allows you to move the tire forward in the wheel well, providing clearance for up to 33″ tires without requiring frame or fender modifications.

Do these control arms require maintenance?
No, these control arms feature maintenance-free ball joints with a fully sealed architecture that keeps grease in and contaminants out. The xAxis™ sealed flex joints in bonded rubber bushings also eliminate the need for regular greasing, making them truly maintenance-free.

What makes these ball joints better than stock?
The SPC ball joints feature a 25% larger stud cross section than OE for superior strength, E-Nickel coating for corrosion protection, and 80° of articulation for maximum suspension travel. The one-piece polymer race design with modern grease formula ensures quiet operation and extended life that matches or exceeds OE performance.

Can I use these with knuckle gusset kits?
Yes, the extended threads on the ball joint studs make these control arms compatible with knuckle gusset kits, allowing you to add additional strength to your suspension setup without compatibility issues.