{"product_id":"eaton-detroit-truetrac-gm-8-2in-irs-28-spline-912a642","title":"Eaton Detroit Truetrac Helical Limited-Slip Differential | GM 8.2in IRS 28-Spline | 912A642","description":"\u003cp\u003eThe Eaton Detroit Truetrac is a helical gear-driven limited-slip differential that maximizes available traction while sharpening handling and drivability. It works smoothly and automatically, needs no maintenance, and avoids the on\/off behavior of a locker, which makes it a strong choice for street, tow, and trail use.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eType: Helical gear limited-slip differential\u003c\/li\u003e\n\u003cli\u003eAxle: GM 8.2in IRS\u003c\/li\u003e\n\u003cli\u003eRing gear: 8.2in\u003c\/li\u003e\n\u003cli\u003eSpline count: 28\u003c\/li\u003e\n\u003cli\u003eGear ratio: fits all ratios\u003c\/li\u003e\n\u003cli\u003ePart number: 912A642\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eVehicle Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e2004-2006 Pontiac GTO\u003c\/li\u003e\n\u003cli\u003e2004-2006 Holden Monaro\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch5\u003eWhat vehicles does the Truetrac 912A642 fit?\u003c\/h5\u003e\u003cp\u003eIt fits the GM 8.2in IRS axle used in the 2004-2006 Pontiac GTO and Holden Monaro, with a 28-spline count.\u003c\/p\u003e\u003ch5\u003eWhat ratios does it support?\u003c\/h5\u003e\u003cp\u003eIt fits all ring-and-pinion ratios for the GM 8.2in IRS axle.\u003c\/p\u003e\u003ch5\u003eDoes the Truetrac need a switch or maintenance?\u003c\/h5\u003e\u003cp\u003eNo. It is fully automatic, needs no maintenance, and has no on\/off locker behavior.\u003c\/p\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What vehicles does the Truetrac 912A642 fit?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"It fits the GM 8.2in IRS axle used in the 2004-2006 Pontiac GTO and Holden Monaro, with a 28-spline count.\"}}, {\"@type\": \"Question\", \"name\": \"What ratios does it support?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"It fits all ring-and-pinion ratios for the GM 8.2in IRS axle.\"}}, {\"@type\": \"Question\", \"name\": \"Does the Truetrac need a switch or maintenance?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No. It is fully automatic, needs no maintenance, and has no on\/off locker behavior.\"}}]}\u003c\/script\u003e","brand":"Eaton","offers":[{"title":"Default Title","offer_id":43562277830704,"sku":"EAT912A642","price":814.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/0a6bc3ccfb7a53d60c58bd5c698d8fff.jpg?v=1788435070","url":"https:\/\/berryperformancesales.com\/products\/eaton-detroit-truetrac-gm-8-2in-irs-28-spline-912a642","provider":"Berry Performance Sales","version":"1.0","type":"link"}