{"product_id":"arb-airlocker-dana44-35spl-3-73-dn-s-n","title":"ARB Dana 44 Selectable Air Locker - 3.73 \u0026 Down, Rear Axle, 35 Spline","description":"\u003cp\u003eThe ARB Air Locker Differential for Dana 44 rear axles \u003cmeta charset=\"utf-8\"\u003eallows drivers to move slower, safer, and with greater control, reducing drivetrain shock, vehicle damage, and environmental impact. The Air Locker uses a pneumatically operated locking system inside the differential. When activated, the internal gears are fully locked, preventing independent axle shaft rotation and forcing both wheels to turn together. When disengaged, it operates like a conventional open differential for normal street use.\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\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNotes: \u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/arb-compressor-twin-12v\"\u003eAir compressor\u003c\/a\u003e required for operation (sold separately).\u003c\/li\u003e\n\u003cli\u003eThis locker is intended for aftermarket housings, custom axle builds, and performance applications,\u003cstrong\u003e not stock replacement installs.\u003c\/strong\u003e\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e \u003cmeta charset=\"utf-8\"\u003e\n\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\u003ePosition: Rear\u003c\/li\u003e\n\u003cli\u003eSpline Count: 35\u003c\/li\u003e\n\u003cli\u003eShaft Diameter: 1.50 in\u003c\/li\u003e\n\u003cli\u003eCarrier Break: 3.73 \u0026amp; Down\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\u003eJeep\u003c\/td\u003e\n\u003ctd\u003eWrangler\u003c\/td\u003e\n\u003ctd\u003e1997–2017\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJeep\u003c\/td\u003e\n\u003ctd\u003eWrangler JK\u003c\/td\u003e\n\u003ctd\u003e2018\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eImportant Fitment Notes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSome late-model Dana 44 axles support all gear ratios — verify housing and carrier style before ordering\u003cmeta charset=\"utf-8\"\u003e\n\u003c\/li\u003e\n\u003cli\u003ePerformance application models \u003cstrong\u003eDO NOT\u003c\/strong\u003e accept OE axle shafts\u003c\/li\u003e\n\u003cli\u003eCustom axle shafts are required to match your housing and spline configuration\u003c\/li\u003e\n\u003cli\u003eGear ratio compatibility varies by housing and carrier design — verification required prior to purchase\u003c\/li\u003e\n\u003cli\u003eThis locker is intended for aftermarket housings, custom axle builds, and performance applications, not stock replacement installs.\u003cmeta charset=\"utf-8\"\u003e\n\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 allows ultra-fast disengagement under load, reducing driveline stress while maintaining exceptional strength. The two-piece carrier design minimizes internal moving parts for maximum reliability under high torque and shock loads. A steel reinforced, elastomer bonded annular seal ensures consistent operation across extreme temperature ranges and harsh environments.\u003c\/p\u003e\n\u003cp\u003eSelectable control means traction only when you need it with 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":52986640859501,"sku":"ARBRD147","price":1299.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0927\/1145\/3037\/files\/ARB-RD147-Air-Locker-Differential-Dana-44-35-spline-1.jpg?v=1775546143","url":"https:\/\/craneaxle.com\/products\/arb-airlocker-dana44-35spl-3-73-dn-s-n","provider":"Crane Axle","version":"1.0","type":"link"}