{"product_id":"weight-jack-kit-components","title":"Weight Jack Kit Components","description":"The UMI Performance weight jack kit is engineered for the 1982-1992 GM F-Body platform, providing a medium-firm ride that excels in daily driving, corner carving, auto-x, and road racing applications. Constructed from strong US Steel with a 1\/4\" thick, CNC laser-cut design, this kit ensures durability. It features UMI's exclusive thrust bearings on the jack plates for smooth and even load distribution, allowing for ride height adjustment from stock to a 2-1\/2\" drop, with most track testing performed at a 2\" drop. The kit offers two spring rate options: 850 lb\/in front and 175 lb\/in rear for daily driving and street cornering, or 1050 lb\/in front and 200 lb\/in rear for more aggressive performance driving. The rear kit is compatible with factory and Strange Engineering rear housings, while the front kit fits UMI and factory K-members.\n\nManufactured in the USA, this kit boasts acme threads and thrust bearings for effortless ride height adjustments, typically managed with a ratchet and 3\/4\" socket. The design incorporates an anti-rotation tab and allows for independent corner weight tuning, a critical feature for optimizing auto-x handling. It maintains factory clearance around the strut, maximizing tire and wheel width potential. It is important to note that while the front kit fits UMI and factory K-members, it may not be compatible with other brands.","brand":"UMI","offers":[{"title":"Default Title","offer_id":52689505452344,"sku":"206575","price":859.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687753868.jpg?v=1784907162","url":"https:\/\/store.motormia.co\/products\/weight-jack-kit-components","provider":"MOTORMIA","version":"1.0","type":"link"}