{"product_id":"forged-4140-cromoly-steel-upper-ball-joint","title":"Forged 4140 CroMoly Steel Upper Ball Joint","description":"The Supermiata forged Upper Ball Joint offers a direct replacement solution for the OEM upper ball joint in 1989-2005 Mazda Miatas. Constructed with a forged 4140 CroMoly steel body, it provides superior strength compared to the original cast component.\n\nThis unit features heat-treated construction for enhanced durability and is ISO TS16949 certified, ensuring it meets stringent quality standards. It includes a Zerk fitting for easy lubrication and snap ring retention for a secure installation. A spacer is provided for 1989-1997 spindles; this spacer should be removed when installing on NB models. The product comes with a 5-year warranty, though the rubber boot is excluded.\n\nFor installation on 1989-1997 Miata spindles, the included spacer should be used. When installing on NB Miatas, the thick washer or spacer should be removed.","brand":"Supermiata","offers":[{"title":"Default Title","offer_id":52866416935224,"sku":"UBJ-NA-NB","price":29.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687704183.jpg?v=1787907507","url":"https:\/\/store.motormia.co\/products\/forged-4140-cromoly-steel-upper-ball-joint","provider":"MOTORMIA","version":"1.0","type":"link"}