{"product_id":"eaton-posi-gm-8-5-10-bolt-30-spline-19559-010","title":"Eaton Posi Clutch-Type Limited-Slip Differential | GM 8.5in\/8.6in 10-Bolt 30-Spline | 19559-010","description":"\u003cp\u003eThe Eaton Posi 19559-010 is a clutch-type limited-slip differential for the GM 8.5 inch and 8.6 inch 10-bolt axle with 30-spline axle shafts. It uses race-bred carbon friction discs in a fully rebuildable housing, and the clutch preload is tunable by swapping spring packs, so the traction bias can be dialed in for the application.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eType: Clutch-type limited-slip differential (Eaton Posi)\u003c\/li\u003e\n\u003cli\u003eAxle: GM 8.5in \/ 8.6in 10-bolt\u003c\/li\u003e\n\u003cli\u003eRing gear diameter: 8.5 in \/ 8.6 in\u003c\/li\u003e\n\u003cli\u003eAxle shaft diameter: 1.32 in\u003c\/li\u003e\n\u003cli\u003eSpline count: 30\u003c\/li\u003e\n\u003cli\u003eGear ratio: 2.73 and numerically higher\u003c\/li\u003e\n\u003cli\u003eRebuildable: yes, tunable clutch preload\u003c\/li\u003e\n\u003cli\u003ePart number: 19559-010\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eAxle Fitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eFits the GM 8.5in\/8.6in 10-bolt axle (30-spline, 2.73 and up), front or rear, used across many GM cars and trucks. Confirm your axle and spline count.\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch5\u003eWhat axle does the 19559-010 fit?\u003c\/h5\u003e\u003cp\u003eThe GM 8.5in and 8.6in 10-bolt axle with 30-spline shafts.\u003c\/p\u003e\u003ch5\u003eIs it rebuildable?\u003c\/h5\u003e\u003cp\u003eYes. The Posi uses replaceable carbon friction discs and a rebuildable housing, with preload tunable by spring packs.\u003c\/p\u003e\u003ch5\u003eWhat ratios does it cover?\u003c\/h5\u003e\u003cp\u003eThe 2.73 and numerically higher ratio range for this axle.\u003c\/p\u003e\u003ch5\u003eHow do I confirm fitment?\u003c\/h5\u003e\u003cp\u003eConfirm you have a GM 8.5in or 8.6in 10-bolt axle with 30-spline shafts before ordering.\u003c\/p\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What axle does the 19559-010 fit?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The GM 8.5in and 8.6in 10-bolt axle with 30-spline shafts.\"}}, {\"@type\": \"Question\", \"name\": \"Is it rebuildable?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. The Posi uses replaceable carbon friction discs and a rebuildable housing, with preload tunable by spring packs.\"}}, {\"@type\": \"Question\", \"name\": \"What ratios does it cover?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The 2.73 and numerically higher ratio range for this axle.\"}}, {\"@type\": \"Question\", \"name\": \"How do I confirm fitment?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Confirm you have a GM 8.5in or 8.6in 10-bolt axle with 30-spline shafts before ordering.\"}}]}\u003c\/script\u003e","brand":"Eaton","offers":[{"title":"Default Title","offer_id":43498611572784,"sku":"BHXC_19559-010","price":750.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/DET19559-010.jpg?v=1786957681","url":"https:\/\/berryperformancesales.com\/products\/eaton-posi-gm-8-5-10-bolt-30-spline-19559-010","provider":"Berry Performance Sales","version":"1.0","type":"link"}