{"product_id":"upper-ball-joints-mazda-miata-mx5-na-1990-1997","title":"Upper Ball Joints - Mazda Miata MX5 NA 1990-1997","description":"\u003cp data-start=\"121\" data-end=\"195\"\u003e\u003cstrong data-start=\"121\" data-end=\"195\"\u003eCircuit Sports Extended Upper Ball Joints – Mazda Miata NA (1990–1997)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"197\" data-end=\"477\"\u003eThe Circuit Sports Upper Ball Joints for the Mazda Miata \u003cstrong data-start=\"263\" data-end=\"281\"\u003eNA (1990–1997)\u003c\/strong\u003e are a direct bolt-on replacement designed to increase negative camber by approximately \u003cstrong data-start=\"369\" data-end=\"383\"\u003e-2 degrees\u003c\/strong\u003e, with an overall adjustment range of roughly \u003cstrong data-start=\"429\" data-end=\"445\"\u003e-0.5° to -4°\u003c\/strong\u003e, depending on suspension setup.\u003c\/p\u003e\n\u003cp data-start=\"479\" data-end=\"842\"\u003eOver time, the dust boots on OEM upper ball joints can deteriorate, allowing dirt and debris to enter the joint. This contamination can lead to clunking, vibration, reduced steering precision, and excessive tire wear. Circuit Sports upper ball joints are engineered as a high-quality replacement, offering improved suspension geometry, performance, and longevity.\u003c\/p\u003e\n\u003cp data-start=\"844\" data-end=\"943\"\u003eEach unit is manufactured and assembled by an \u003cstrong data-start=\"890\" data-end=\"929\"\u003eISO9001:2000-certified manufacturer\u003c\/strong\u003e and features:\u003c\/p\u003e\n\u003cul data-start=\"944\" data-end=\"1069\"\u003e\n\u003cli data-start=\"944\" data-end=\"976\"\u003e\n\u003cp data-start=\"946\" data-end=\"976\"\u003eForged housing and ball stud\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"977\" data-end=\"1010\"\u003e\n\u003cp data-start=\"979\" data-end=\"1010\"\u003eHigh-quality rubber dust boot\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1011\" data-end=\"1069\"\u003e\n\u003cp data-start=\"1013\" data-end=\"1069\"\u003eOxidation- and corrosion-resistant silver zinc coating\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1071\" data-end=\"1305\"\u003eBuilt to tight tolerances, these ball joints provide approximately \u003cstrong data-start=\"1138\" data-end=\"1174\"\u003e40% increased stiffness over OEM\u003c\/strong\u003e, resulting in improved steering feel, more consistent camber control, and enhanced durability under aggressive driving conditions.\u003c\/p\u003e\n\u003cp data-start=\"1307\" data-end=\"1416\"\u003eThe kit includes \u003cstrong data-start=\"1324\" data-end=\"1372\"\u003ehigh-grade mounting hardware and cotter pins\u003c\/strong\u003e for a straightforward, direct installation.\u003c\/p\u003e\n\u003cp data-start=\"1418\" data-end=\"1576\"\u003e\u003cstrong data-start=\"1418\" data-end=\"1492\"\u003eProfessional wheel alignment is highly recommended after installation.\u003c\/strong\u003e Minor toe adjustments may be required depending on ride height and alignment goals.\u003c\/p\u003e\n\u003cp data-start=\"1578\" data-end=\"1636\"\u003e\u003cstrong data-start=\"1578\" data-end=\"1636\"\u003eSold as a pair (price includes two upper ball joints).\u003c\/strong\u003e\u003c\/p\u003e","brand":"Circuit Sports USA","offers":[{"title":"Default Title","offer_id":49306185367789,"sku":"UBJ-NAB01-ICH","price":55.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0687\/1811\/files\/IMG_6514.jpg?v=1772664784","url":"https:\/\/www.circuit-sports.com\/products\/upper-ball-joints-mazda-miata-mx5-na-1990-1997","provider":"Circuit Sports USA","version":"1.0","type":"link"}