Whiteline Radius Arm Lower Bushing Caster Correction Kit

Whiteline's Radius Arm Lower Bushing Caster Correction Kits are precision-engineered suspension components designed to restore proper caster geometry, eliminate worn-bushing vagueness, and deliver measurable improvements in handling, steering response, and braking performance. Suitable for street driving, track use, and off-road applications, this product line offers proven solutions backed by decades of Whiteline suspension engineering expertise.

Caster Geometry Correction

Each kit utilizes offset bushing geometry to increase static caster and promote dynamic negative camber gain — two factors that directly translate to improved cornering grip, more confident straight-line stability, and sharper turn-in response. By correcting caster through a simple bushing replacement, these kits deliver alignment-level performance improvements without requiring complex adjustable components.

Proprietary Synthetic Elastomer Construction

Whiteline bushings are manufactured from their proprietary synthetic elastomer compound — a purpose-developed material engineered to combine the ride compliance of OEM rubber at low loads with the controlled rigidity of performance polyurethane under cornering, braking, and acceleration forces. The compound delivers superior elasticity, shape memory retention, and long-term durability compared to standard rubber or conventional polyurethane alternatives.

Key Features:

• Caster Geometry Correction: Increased static caster and dynamic negative camber gain improve cornering grip and straight-line stability
• Advanced Synthetic Elastomer Material: Outperforms OEM rubber in durability, elasticity, and shape memory retention while maintaining ride compliance
• Improved Steering Precision: Reduced suspension deflection delivers sharper feedback, more steering weight, and more predictable response
• Enhanced Braking Performance: Minimizes alignment change under braking loads for consistent pedal feel and stopping performance
• Chemical and Environmental Resistance: Resistant to oils, road chemicals, and weathering for extended service life
• Self-Lubricating Design: Internal bore knurling creates lubrication reservoirs that manage friction and heat over time
• NVH-Optimized Engineering: Engineered articulation zones reduce noise, vibration, and harshness without sacrificing handling performance
• Warranty Coverage: Backed by Whiteline's limited manufacturer's warranty on chassis control bushing kits

Whether you're replacing degraded factory bushings to restore original handling characteristics or upgrading for enhanced on-road or track performance, Whiteline Radius Arm Lower Bushing Caster Correction Kits deliver a balance of ride quality and chassis precision that neither OEM rubber nor standard polyurethane can match.