Improve suspension control and alignment adjustability with the SuperPro SPF4185K Rear Trailing Arm Camber and Toe Adjustable Bushing Kit. Designed for select BMW applications, this kit helps fine-tune rear camber and toe settings without requiring complete adjustable trailing arms. With approximately 0.5 to 1.0 degree of adjustment, it can help restore alignment to factory specifications, accommodate a mild suspension lift, or compensate for changes caused by upgraded wheels, tires, or suspension components.
Worn trailing arm bushings can permit excessive deflection and movement, contributing to slower response, imprecise handling, irregular tire wear, and reduced driving stability. These effects can become more noticeable on modified vehicles, where increased weight and larger wheels and tires place additional demands on the suspension. Replacing worn components with the SuperPro SPF4185K kit helps provide more consistent suspension movement and improved alignment control for everyday driving, spirited use, and off-road applications.
SuperPro polyurethane bushings are developed from decades of suspension engineering experience and testing in demanding Australian terrain. The durable polyurethane formulation is engineered to improve performance while preserving comfortable road manners. The bushings are designed to maintain effective noise, vibration, and harshness isolation while providing dependable control across a wide range of driving conditions. This kit is a practical upgrade for BMW owners seeking improved suspension precision and adjustable rear alignment performance.
Fitment includes select BMW models such as the 1991 325i, 1991 318i, 1986 325, 1987 325es, 1986 325es, and 1988–1991 325iX applications. Verify vehicle year, model, and suspension configuration before ordering to ensure proper fitment.
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