{"product_id":"arb-air-locker-differential-dana-70-80-rear-35-spline-high-speed-for-ford-f-250-f-350-super-duty-1984-1997-199","title":"ARB Air Locker Differential, Dana 70\/80 Rear, 35 Spline, High Speed for Ford F-250\/F-350 Super Duty (1993-1997, 1999-2016) \u0026 Ram 2500\/3500 (1994-2002)","description":"\u003cdiv class=\"nv-desc\"\u003e\n\u003ch2\u003eARB Air Locker Differential, Dana 70\/80 Rear, 35 Spline, High Speed for Ford F-250\/F-350 Super Duty (1993-1997, 1999-2016) \u0026amp; Ram 2500\/3500 (1994-2002)\u003c\/h2\u003e\n\u003cp\u003eAn ARB Air Locker for the Dana 70 and Dana 80 full float with 35 splines. Gear ratio: 4.10 and down on the Dana 70. ARB lists it for the Ford Super Duty F-350 1993-1997, 1999-2016; Dodge Ram 2500\/3500 1994-2002.\u003c\/p\u003e\n\u003cdiv class=\"nv-h\"\u003eWhy it works\u003c\/div\u003e\n\u003cdiv class=\"nv-fcards\"\u003e\n\u003cdiv class=\"nv-fcard\"\u003e\n\u003cb\u003eSelectable lock\u003c\/b\u003eFlick a switch and the differential locks, then unlocks again when you want normal driving.\n\u003c\/div\u003e\n\u003cdiv class=\"nv-fcard\"\u003e\n\u003cb\u003eAxle-specific\u003c\/b\u003eSized for 35-spline shafts of 1.50 in. on the Dana 70 and Dana 80 full float.\n\u003c\/div\u003e\n\u003cdiv class=\"nv-fcard\"\u003e\n\u003cb\u003eRatio range\u003c\/b\u003eListed for these ratios: 4.10 and down on the Dana 70. Check your gearing first.\n\u003c\/div\u003e\n\u003cdiv class=\"nv-fcard\"\u003e\n\u003cb\u003e5-year warranty\u003c\/b\u003eARB covers its Air Lockers for 5 years.\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nv-h\"\u003eSpecifications\u003c\/div\u003e\n\u003ctable class=\"nv-spec\"\u003e\n\u003ctr\u003e\n\u003cth\u003eSpec\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart number\u003c\/td\u003e\n\u003ctd\u003eRD173\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eFord Super Duty F-350 1993-1997, 1999-2016; Dodge Ram 2500\/3500 1994-2002\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAxle\u003c\/td\u003e\n\u003ctd\u003eDana 70 and Dana 80 full float\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePosition\u003c\/td\u003e\n\u003ctd\u003eRear\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpline count\u003c\/td\u003e\n\u003ctd\u003e35\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShaft diameter\u003c\/td\u003e\n\u003ctd\u003e1.50 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCarrier\u003c\/td\u003e\n\u003ctd\u003eHigh speed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGear ratio\u003c\/td\u003e\n\u003ctd\u003e4.10 and down on the Dana 70\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cdiv class=\"nv-h\"\u003eBefore you order\u003c\/div\u003e\n\u003cp\u003eConfirm your axle is a Dana 70 (10.5 in.) or Dana 80 (11.5 in.) with 35 splines. The Dana 70-3HD needs special fitment. ARB lists the Dana 80 with 35 splines at 3.73 and down or 4.10 and up; check your ratio against ARB's chart. ARB install instructions: \u003ca href=\"https:\/\/d32vzsop7y1h3k.cloudfront.net\/6360ae0f14848fbc8dbcc3d951322b9e.PDF\" target=\"_blank\" rel=\"noopener nofollow\"\u003edownload the PDF\u003c\/a\u003e. Not sure it fits your build? Call real humans at \u003ca href=\"tel:+19202497744\"\u003e(920) 249-7744\u003c\/a\u003e with your year, trim and setup and we will confirm it.\u003c\/p\u003e\n\u003cdiv class=\"nv-h\"\u003eFrequently asked questions\u003c\/div\u003e\n\u003cdiv class=\"nv-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat axle is it for?\u003c\/summary\u003e\u003cp\u003eDana 70 and Dana 80 full float, rear, with 35 splines and a 1.50 in. shaft. Ratio: 4.10 and down on the Dana 70.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhich vehicles does it fit?\u003c\/summary\u003e\u003cp\u003eFord Super Duty F-350 1993-1997, 1999-2016; Dodge Ram 2500\/3500 1994-2002.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes it need a compressor?\u003c\/summary\u003e\u003cp\u003eYes. An Air Locker is pneumatically operated, so it needs an air supply. The compressor is sold separately.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat is the warranty?\u003c\/summary\u003e\u003cp\u003eARB covers its own and Old Man Emu products for 3 years with unlimited miles (Air Lockers 5 years); wear items like bushes, shackles, pins and U-bolts are covered for 1 year or 25,000 miles.\u003c\/p\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nv-xsell\"\u003e\n\u003cdiv class=\"nv-xh\"\u003eMore from ARB\n\u003c\/div\u003e\n\u003cdiv class=\"nv-xrow\"\u003e\n\u003ca class=\"nv-xitem\" href=\"\/collections\/arb\"\u003e\u003cb\u003eAll ARB\u003c\/b\u003eEvery part we carry from the brand\u003c\/a\u003e\n\u003ca class=\"nv-xitem\" href=\"\/collections\/navigation-drivetrain-differentials-lockers\"\u003e\u003cb\u003eMore Lockers\u003c\/b\u003eCompare every brand we carry\u003c\/a\u003e\n\u003ca class=\"nv-xitem\" href=\"\/collections\/ford-super-duty\"\u003e\u003cb\u003eAll Ford F-250\/F-350 Super Duty\u003c\/b\u003eBrowse parts that fit\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What axle is it for?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Dana 70 and Dana 80 full float, rear, with 35 splines and a 1.50 in. shaft. Ratio: 4.10 and down on the Dana 70.\"}}, {\"@type\": \"Question\", \"name\": \"Which vehicles does it fit?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Ford Super Duty F-350 1993-1997, 1999-2016; Dodge Ram 2500\/3500 1994-2002.\"}}, {\"@type\": \"Question\", \"name\": \"Does it need a compressor?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. An Air Locker is pneumatically operated, so it needs an air supply. The compressor is sold separately.\"}}, {\"@type\": \"Question\", \"name\": \"What is the warranty?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"ARB covers its own and Old Man Emu products for 3 years with unlimited miles (Air Lockers 5 years); wear items like bushes, shackles, pins and U-bolts are covered for 1 year or 25,000 miles.\"}}]}\u003c\/script\u003e\n\u003c\/div\u003e","brand":"ARB","offers":[{"title":"Default Title","offer_id":58685229269295,"sku":"RD173","price":1499.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0861\/5113\/5535\/files\/01a1257f2a7a7c7b0f3fd4b6dca425af.jpg?v=1792553205","url":"https:\/\/nvmos.com\/products\/arb-air-locker-differential-dana-70-80-rear-35-spline-high-speed-for-ford-f-250-f-350-super-duty-1984-1997-199","provider":"NVMOS","version":"1.0","type":"link"}