{"product_id":"arb-airlocker-dana44-30spl-3-73-dn-s-n","title":"ARB Dana 44 Selectable Air Locker - 3.73 \u0026 Down, 30 Spline","description":"\u003cp\u003eThe ARB Air Locker Differential for Dana 44 axles is the world’s premier selectable traction aid, providing 100% locking traction on demand while maintaining smooth, predictable drivability when disengaged. Designed to \u003cmeta charset=\"utf-8\"\u003eallow drivers to move slower, safer, and with greater control while reducing drivetrain shock, vehicle damage, and environmental impact.\u003c\/p\u003e\n\u003cp\u003eThe Air Locker uses a pneumatically operated locking system inside the differential. When engaged, the internal gears are fully locked together, preventing independent axle shaft rotation and forcing both wheels to turn at the same speed. This delivers maximum traction in rocks, mud, snow, and uneven terrain. When disengaged, it functions like a conventional open differential.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKit Includes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eARB Dana 44 Air Locker Differential\u003c\/li\u003e\n\u003cli\u003eDash activation switch\u003c\/li\u003e\n\u003cli\u003eSolenoid valve\u003c\/li\u003e\n\u003cli\u003eAir line\u003c\/li\u003e\n\u003cli\u003eBulkhead fitting\u003cmeta charset=\"utf-8\"\u003e\n\u003c\/li\u003e\n\u003cli\u003eNote: \u003ca href=\"\/products\/arb-compressor-twin-12v\"\u003eAir compressor\u003c\/a\u003e required for operation (sold separately).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cdetails class=\"details\"\u003e\n\u003csummary class=\"details__header\"\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003cspan class=\"svg-wrapper icon-plus\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"none\" viewbox=\"0 0 14 14\" height=\"14\" width=\"14\"\u003e\u003cpath stroke-linecap=\"round\" stroke-width=\"var(--icon-stroke-width)\" stroke=\"currentColor\" d=\"M2.75 7H11.25\" class=\"vertical\"\u003e\u003c\/path\u003e\u003cpath stroke-linecap=\"round\" stroke-width=\"var(--icon-stroke-width)\" stroke=\"currentColor\" d=\"M7 2.75L7 11.25\" class=\"horizontal\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"details-content rte\"\u003e\n\u003cul\u003e\n\u003cli\u003eDifferential Type: Selectable Air Locker\u003c\/li\u003e\n\u003cli\u003eAxle Type: Dana 44\u003c\/li\u003e\n\u003cli\u003eSpline Count: 30\u003c\/li\u003e\n\u003cli\u003eShaft Diameter (Rear): 1.31 in\u003c\/li\u003e\n\u003cli\u003eMaterial: Steel\u003c\/li\u003e\n\u003cli\u003eColor: Silver\u003c\/li\u003e\n\u003cli\u003eDesign: Two-piece carrier\u003c\/li\u003e\n\u003cli\u003eActivation: Pneumatic (air-operated)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003chr\u003e\n\u003cdetails class=\"details\"\u003e\n\u003csummary class=\"details__header\"\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003cspan class=\"svg-wrapper icon-plus\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"none\" viewbox=\"0 0 14 14\" height=\"14\" width=\"14\"\u003e\u003cpath stroke-linecap=\"round\" stroke-width=\"var(--icon-stroke-width)\" stroke=\"currentColor\" d=\"M2.75 7H11.25\" class=\"vertical\"\u003e\u003c\/path\u003e\u003cpath stroke-linecap=\"round\" stroke-width=\"var(--icon-stroke-width)\" stroke=\"currentColor\" d=\"M7 2.75L7 11.25\" class=\"horizontal\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"details-content rte\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eYear Range\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eBronco\u003c\/td\u003e\n\u003ctd\u003e1983–1996\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eBronco II\u003c\/td\u003e\n\u003ctd\u003e1984–1990\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eE-100 Econoline\u003c\/td\u003e\n\u003ctd\u003e1983\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eE-100 Econoline Club Wagon\u003c\/td\u003e\n\u003ctd\u003e1983\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eE-150 \/ E-150 Econoline\u003c\/td\u003e\n\u003ctd\u003e1983–2014\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eE-150 Club Wagon \/ Econoline Club Wagon\u003c\/td\u003e\n\u003ctd\u003e1983–2005\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eE-250 \/ E-250 Econoline\u003c\/td\u003e\n\u003ctd\u003e1983–1998\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eE-250 Econoline Club Wagon\u003c\/td\u003e\n\u003ctd\u003e1983–1991\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eExpedition\u003c\/td\u003e\n\u003ctd\u003e1997–2001\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eExplorer\u003c\/td\u003e\n\u003ctd\u003e1991–2014\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eExplorer Sport\u003c\/td\u003e\n\u003ctd\u003e2001–2003\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eExplorer Sport Trac\u003c\/td\u003e\n\u003ctd\u003e2001–2010\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eRanger\u003c\/td\u003e\n\u003ctd\u003e1990–2011\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMazda\u003c\/td\u003e\n\u003ctd\u003eB4000\u003c\/td\u003e\n\u003ctd\u003e1994\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMazda\u003c\/td\u003e\n\u003ctd\u003eNavajo\u003c\/td\u003e\n\u003ctd\u003e1991–1994\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eImportant Fitment \u0026amp; Compatibility Notes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAftermarket Dana 44 standard-cut ring \u0026amp; pinion ratios of 4.56 \u0026amp; up require \u003ca href=\"\/products\/arb-airlocker-dana44-30spl-3-92-up-s-n\"\u003eRD116\u003c\/a\u003e (Excludes Jeep JK)\u003c\/li\u003e\n\u003cli\u003eThick-cut Dana 44 ring \u0026amp; pinion sets (all ratios) require RD117 (Excludes Jeep JK)\u003cmeta charset=\"utf-8\"\u003e\n\u003c\/li\u003e\n\u003cli\u003eNewer OEM Chrysler 8.25 and Dana 44 ring gears may use 3\/8\", 7\/16\", or 1\/2\" ring gear bolts\u003cmeta charset=\"utf-8\"\u003e\n\u003c\/li\u003e\n\u003cli\u003eAir Locker flange holes must be drilled or reamed to accept 7\/16\" or 1\/2\" ring gear bolts\u003c\/li\u003e\n\u003cli\u003eAlways verify ring gear bolt size, cut type, and gear ratio before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003chr\u003e\n\u003cdetails class=\"details\"\u003e\n\u003csummary class=\"details__header\"\u003e\u003cstrong\u003eTech Insight\u003c\/strong\u003e\u003cspan class=\"svg-wrapper icon-plus\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"none\" viewbox=\"0 0 14 14\" height=\"14\" width=\"14\"\u003e\u003cpath stroke-linecap=\"round\" stroke-width=\"var(--icon-stroke-width)\" stroke=\"currentColor\" d=\"M2.75 7H11.25\" class=\"vertical\"\u003e\u003c\/path\u003e\u003cpath stroke-linecap=\"round\" stroke-width=\"var(--icon-stroke-width)\" stroke=\"currentColor\" d=\"M7 2.75L7 11.25\" class=\"horizontal\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"details-content rte\"\u003e\n\u003cp\u003eARB’s patented timed locking mechanism enables ultra-fast disengagement under load, minimizing driveline stress while maintaining exceptional strength. The two-piece carrier design reduces internal moving parts for increased reliability, and the steel-reinforced, elastomer-bonded annular seal is engineered to perform in extreme temperatures and harsh off-road environments.\u003c\/p\u003e\n\u003cp\u003eSelectable control means traction only when you need it—no compromise on-road, maximum confidence off-road.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003chr\u003e","brand":"ARB","offers":[{"title":"Default Title","offer_id":52986641088877,"sku":"ARBRD117","price":1299.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0927\/1145\/3037\/files\/ARB-RD117-Air-Locker-Differential-Dana-44-30-Spline-1.jpg?v=1780597440","url":"https:\/\/craneaxle.com\/products\/arb-airlocker-dana44-30spl-3-73-dn-s-n","provider":"Crane Axle","version":"1.0","type":"link"}