When lifting your Toyota 4Runner, the factory upper control arms are one of the first components to fail. Stock arms suffer from poor geometry, reduced strength, and over-articulation that puts unnecessary stress on ball joints and bushings. Peak Suspension engineered a solution designed to delivercorrect geometry, maximum strength, and maintenance-free performancefor serious off-road use.

Optimized Geometry for Lifted 4Runners

Ourtubular chromoly upper control armsare built withincreased caster and re-positioned pivot anglesto restore proper alignment and suspension travel after a lift. This correction improves straight-line stability, enhances cornering, and ensures your 4Runner handles predictably both on and off the trail.

High-Strength Uniball Design

Weak OE ball joints are replaced with1 stainless steel ProBearing uniballs, offering unmatched articulation, steering precision, and durability under heavy loads. This upgrade ensures your 4Runner can tackle rough terrain, technical rock crawling, or high-speed desert runs with confidence.

Dual Durometer Bushing Technology

At the inner pivots, weve incorporated our latestdual durometer bushing system. Featuring a bonded rubber outer layer with a composite core and inner sleeve, this advanced design:

• Absorbs vibration and trail chatter for a smoother ride

• Eliminates noise, squeaks, and harsh feedback

• Provides aquiet, maintenance-free solution no greasing required

Peak Quality & Durability

• Constructed fromhigh-strength chromoly steel

• Finished withPeaks signature powdercoatfor corrosion resistance

• Preassembled for an easy bolt-on installation

• Designed, tested, and manufactured in the USA

Whats in the Box

• (2) Chromoly Tubular Upper Control Arms

• (2) Dual Durometer Bushings with Inner Sleeves

• (2) 1 Stainless Steel ProBearing Uniballs (pre-installed)

• Durable Powdercoat Finish

• Zip Ties for Routing