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The SuperPro rear shackle pin bushing kit for 1961 Triumph TR4 replaces worn leaf spring bushings to stabilize rear axle movement and restore predictable tracking. Leaf spring bushings control axle articulation; worn units can cause the rear to wander and become unstable under heavy braking or when carrying a load. Upgrading to SuperPro helps reduce rear-end passive steer and improves stability during towing and everyday driving.
SuperPro 1961 Triumph TR4 Base Rear Shackle Pin Bushing Kit
