{"product_id":"differential-builder-kit","title":"Differential Builder Kit","description":"The Eaton Posi Limited Slip Differential provides enhanced traction control for muscle cars, street rods, light duty pickups, and race cars. Its operation is automatic, requiring no driver input, as preloaded carbon disc clutch packs, located behind each differential side gear, smoothly transfer power to the wheel with more grip when torque input changes. This prevents wheel slip before it can start.\n\nFeaturing a superior, rebuildable design with race-bred carbon friction discs, the Eaton Posi offers limited-slip operation and smooth, automatic engagement. It is tunable via various spring packs for customized performance. For proper function, a quality GL5 petroleum-based or synthetic oil with sufficient friction modifier must be used.\n\nThis Posi unit is designed for GM 8.5-inch and 8.6-inch rear differentials with 30 spline axles and a carrier break of 2.73 and up. It is compatible with Chevy vehicles from 1989-2018. However, it specifically \"does not fit 1999+ with drum brakes.\" Additionally, while 8.6 carriers may fit 8.5 axles, 8.5 carriers may not fit 8.6 axles without a special bearing race.","brand":"Eaton","offers":[{"title":"Default Title","offer_id":52687912010040,"sku":"POSI-GM8.6-RA","price":648.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/664195051.webp?v=1784887238","url":"https:\/\/store.motormia.co\/products\/differential-builder-kit","provider":"MOTORMIA","version":"1.0","type":"link"}