SPF5538K replaces the heim style joints mounting the rear link rod (N243-28-45X) and link arm (NA2E-28-61X) to the rear hub/knuckle (N243-26-11XB & N243-26-12XB).. A superior alternative to rubber: providing higher quality, quieter, longer lasting bushings. Made with SuperPro's proprietary engineering-grade polyurethane formula. Superpro 16-24 Mazda MX-5 Miata ND MX-5 Miata Heim Joint Kit. Unaffected by extreme temperatures, oils, water or coolant. Control Arm Lower and Upper Front - Outer Bearing kit. Designed, engineered and manufactured in Australia. Enhances your vehicles handling and performance. Lifetime Warranty. Bushing Kit

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