{"product_id":"arb-air-locker-differential-dana-70-80-rear-37-spline-high-speed-for-ford-f-250-f-350-super-duty-1988-1997-199","title":"ARB Air Locker Differential, Dana 70\/80 Rear, 37 Spline, High Speed for Ford F-250\/F-350 Super Duty (1988-1997, 1999-2016)","description":"\u003cdiv class=\"nv-desc\"\u003e\n\u003ch2\u003eARB Air Locker Differential, Dana 70\/80 Rear, 37 Spline, High Speed for Ford F-250\/F-350 Super Duty (1988-1997, 1999-2016)\u003c\/h2\u003e\n\u003cp\u003eThis ARB Air Locker is a 37-spline, high-speed carrier for the Dana 80 rear axle with a 1.60 in. shaft, built for 3.73 and lower gearing. ARB lists it for the Ford F-350 from 1988 to 1997 and the Ford Super Duty F-350 from 1999 to 2016. It sits alongside the low-speed version for higher ratios.\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\u003eMatched to the axle\u003c\/b\u003eIt is built for the Dana 70 or 80 rear axle with 37 splines and a high-speed carrier, so the spline count and carrier fit are settled before it ships.\n\u003c\/div\u003e\n\u003cdiv class=\"nv-fcard\"\u003e\n\u003cb\u003eLocks on your command\u003c\/b\u003eAs an Air Locker it is switched by air from the cab, which means the axle runs open until you ask for the lock.\n\u003c\/div\u003e\n\u003cdiv class=\"nv-fcard\"\u003e\n\u003cb\u003eBacked for five years\u003c\/b\u003eARB gives Air Lockers a 5-year warranty, longer than the 3 years on most of its other products.\n\u003c\/div\u003e\n\u003cdiv class=\"nv-fcard\"\u003e\n\u003cb\u003eInstructions available\u003c\/b\u003eARB publishes install instructions for this part number, which helps if you are planning the install yourself.\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\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eFord F-350 1988-1997; Ford Super Duty F-350 1999-2016\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAxle\u003c\/td\u003e\n\u003ctd\u003eDana 80\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\u003e37\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShaft diameter\u003c\/td\u003e\n\u003ctd\u003e1.60 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\u003e3.73 and down\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 the axle is a Dana 80 with 37 splines before ordering. Some 3.73 gear sets are thin and require the 4.10-and-up case, which is the low-speed part. ARB install instructions: \u003ca href=\"https:\/\/d32vzsop7y1h3k.cloudfront.net\/df80c20ba74fc901044c35f614ab99b9.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 does this Air Locker fit?\u003c\/summary\u003e\u003cp\u003eIt is for the Dana 70 or 80 rear axle with 37 splines and a high-speed carrier. Check your axle and spline count before ordering, since lockers are not interchangeable between axles.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhich trucks is it listed for?\u003c\/summary\u003e\u003cp\u003eARB lists the Ford F-350 from 1988 to 1997 and the Ford Super Duty F-350 from 1999 to 2016. It also lists Ford E-350 vans from 1988 to 1998, which this store does not cover.\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\u003cdetails\u003e\u003csummary\u003eAre install instructions available?\u003c\/summary\u003e\u003cp\u003eYes. ARB publishes install instructions for this part number, and we recommend reading them before you start.\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 does this Air Locker fit?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"It is for the Dana 70 or 80 rear axle with 37 splines and a high-speed carrier. Check your axle and spline count before ordering, since lockers are not interchangeable between axles.\"}}, {\"@type\": \"Question\", \"name\": \"Which trucks is it listed for?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"ARB lists the Ford F-350 from 1988 to 1997 and the Ford Super Duty F-350 from 1999 to 2016. It also lists Ford E-350 vans from 1988 to 1998, which this store does not cover.\"}}, {\"@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.\"}}, {\"@type\": \"Question\", \"name\": \"Are install instructions available?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. ARB publishes install instructions for this part number, and we recommend reading them before you start.\"}}]}\u003c\/script\u003e\n\u003c\/div\u003e","brand":"ARB","offers":[{"title":"Default Title","offer_id":58685229334831,"sku":"RD175","price":1499.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0861\/5113\/5535\/files\/8f30b377fdab114df2e59e3e9475fd04.jpg?v=1792553211","url":"https:\/\/nvmos.com\/products\/arb-air-locker-differential-dana-70-80-rear-37-spline-high-speed-for-ford-f-250-f-350-super-duty-1988-1997-199","provider":"NVMOS","version":"1.0","type":"link"}