If you’ve lifted your 3rd gen 4Runner and can’t get alignment back into spec, are fighting tire rub, or your front end feels unstable at highway speeds, these SPC Performance Adjustable Upper Control Arms are one of the best upgrades you can make.

The SPC 3rd gen 4Runner upper control arms were engineered specifically for lifted Toyota platforms that need more alignment correction, better suspension travel, and improved durability on and off the trail. Whether your 4Runner is built for overlanding, rock crawling, snow trips, desert trails, or daily driving with a lift, these arms solve many of the problems that come with factory geometry.

SPC designed these adjustable upper control arms with built-in caster correction and a fully adjustable ball joint system that gives you up to +4 degrees of caster and ±2 degrees of camber adjustment. That means better highway tracking, less wandering, more stable steering feel, and the ability to push oversized tires farther forward in the wheel well to reduce rubbing and trimming.

Unlike many traditional uniball-style arms, these use SPC’s redesigned maintenance-free ball joints and xAxis sealed flex joints. You still get impressive articulation and suspension performance, but without the constant squeaking, corrosion, and maintenance that often comes with exposed uniballs. The fully sealed design keeps grease in and contaminants out, making these ideal for rigs that see mud, snow, road salt, and daily use.

For overland builds carrying rooftop tents, bumpers, recovery gear, and camping setups, these arms help restore proper handling and alignment while improving front-end stability. For trail rigs, the extra articulation and spring bucket clearance help maximize suspension performance and droop travel.

These are one of the most trusted 3rd gen 4Runner upper control arm upgrades for a reason. They work exceptionally well with lift kits from ICON, King, Fox, Bilstein, Dobinsons, Old Man Emu, and other popular suspension systems.

If you're building a serious 3rd gen 4Runner, adjustable upper control arms should be near the top of the list.

Features & Benefits

• Designed specifically for lifted 1996-2002 Toyota 4Runners
• Built-in positive caster correction improves drivability
• Adjustable camber and caster settings
• Helps center oversized tires in the wheel well
• Improves suspension articulation and droop travel
• 80° ball joint articulation for increased travel
• Forged steel construction for maximum durability
• Maintenance-free sealed ball joints
• xAxis sealed flex joints reduce NVH and binding
• Better highway tracking and steering stability
• Reduces premature tire wear on lifted 4Runners
• Excellent option for overlanding and off-road builds
• Compatible with most aftermarket lift kits
• Sold as a pair

Specifications

• Part Number: SPC35460
• Material: Forged Steel
• Finish: Black
• Adjustable: Yes
• Camber Adjustment: ±2.0°
• Caster Adjustment: 0° to +4.0°
• Ball Joint Type: Sealed Maintenance-Free
• Ball Joint Articulation: 80°
• Bushings: xAxis Sealed Flex Joints
• Greaseable: No

Common Questions

Why do lifted 3rd gen 4Runners need upper control arms?

Once you lift your 4Runner, factory alignment geometry changes significantly. Adjustable UCAs help restore caster and camber so the truck drives properly again and doesn’t wander on the highway.

Are SPC upper control arms better than uniball arms for daily driving?

For many 4Runner owners, yes. SPC’s sealed ball joint design tends to be quieter, lower maintenance, and better protected from dirt, mud, snow, and road salt compared to exposed uniballs.

Will these help clear larger tires?

Yes. These arms allow additional caster adjustment that can move the tire farther forward in the wheel well, helping reduce rubbing with larger tires.

What lift height are these recommended for?

Most commonly used on lifted 3rd gen 4Runners running around 2-4 inches of lift.

Do these improve suspension travel?

Yes. SPC redesigned these arms for increased articulation and spring bucket clearance, allowing improved droop travel over factory control arms.