Strut-Mate™ Front Upper Coil Spring Seat by Monroe®. Quantity: 1 per Pack. Worn strut mounts can adversely affect your vehicles handling, and should always be replaced when new struts are installed as a part of a complete repair. Monroe strut mounts replace common wear parts like bearings, upper and lower spring isolators or upper spring seat. Monroe Strut-Mate Mounting Kits are designed to reduce noise and vibration and should be utilized when replacing conventional struts or springs. In addition, full line will provide you with late model original equipment coverage, as well as complementing the ride control characteristics of Monroe struts.