SuperPro SPF5177AK Control Arm Upper Inner Bushing Kit Double Offset

The SuperPro SPF5177AK is an upper inner control arm bushing kit featuring a double offset design engineered to introduce additional positive caster into the suspension geometry. This polyurethane bushing kit is a direct upgrade over worn OEM rubber bushings, restoring and improving suspension performance without the cost of full adjustable control arms.

Double Offset Technology:

• Improved straight-line stability and tracking — the vehicle tracks straight and returns to center with less driver input
• Dynamic camber gain with steering angle — increases tire contact patch during cornering to resist rolling onto the shoulder and improve grip
• Enhanced steering weight and feel — caster change weights up steering off-center for greater feel and feedback
• Non-tire-wearing geometry change — delivers handling improvements with no adverse effect on tire wear, ride comfort, or unwanted handling behavior

SuperPro Polyurethane Construction:

• Engineering-grade polyurethane formulation developed over nearly five decades of suspension expertise
• Resistant to extreme temperatures, oils, water, and coolant for consistent long-term performance
• Retains OEM levels of noise, vibration, and harshness (NVH) isolation while delivering superior handling
• Designed and manufactured in Australia under rigorous R&D and quality control standards

Why Replace Your Control Arm Bushings? Worn or degraded rubber bushings allow excessive deflection and movement in the suspension, leading to imprecise steering response, irregular tire wear, and a vague, sloppy driving feel. The SuperPro SPF5177AK restores correct suspension geometry and upgrades performance at the upper inner control arm pivot point.