{"product_id":"arb-airlocker-amc-model-20-3-08-up-s-n","title":"ARB Air Locker — AMC Model 20 (3.08 \u0026 Up)","description":"\u003cp\u003e\u003cstrong\u003eDone spinning one wheel on the AMC Model 20?\u003c\/strong\u003e The ARB Air Locker RD186 turns your open or limited-slip differential into a fully locked axle the instant you flip the dash switch. Compressed air engages a 100% mechanical lock across the AMC Model 20 centre for maximum traction on demand, then releases for predictable, road-friendly manners the rest of the time.\u003c\/p\u003e\u003cp\u003eEach Air Locker is built around a forged, heat-treated case with hardened internals, engineered to handle high-torque and big-tyre abuse without giving up everyday drivability. Unlike an automatic locker, engagement is 100% driver-controlled — you decide exactly when the axle locks. Note that an air source (an ARB compressor or other on-board air) is required to operate it.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eDifferential\u003c\/th\u003e\n\u003ctd\u003eAMC Model 20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eRing-Gear Ratio Range\u003c\/th\u003e\n\u003ctd\u003e3.08 \u0026amp; up\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eActuation\u003c\/th\u003e\n\u003ctd\u003eAir-operated (compressed air, ~100 psi)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eLocker Type\u003c\/th\u003e\n\u003ctd\u003eFull 100% selectable locking differential\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eAir Source Required\u003c\/th\u003e\n\u003ctd\u003eYes – ARB compressor or on-board air\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eManufacturer Part No. (MPN)\u003c\/th\u003e\n\u003ctd\u003eRD186\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eGTIN\u003c\/th\u003e\n\u003ctd\u003e9332018004161\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eARB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003e5-year ARB Air Locker warranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e matched to the 3.08 \u0026amp; up ring-gear ratios. Air Lockers are matched to the differential carrier, not the vehicle — confirm your diff, spline count and ring-gear ratio before ordering. Browse the full \u003ca href=\"\/collections\/arb\"\u003eARB range at Overland Kitted\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003e\u003csmall\u003e\u003cstrong\u003e⚠ California Proposition 65 Warning:\u003c\/strong\u003e This product can expose you to chemicals known to the State of California to cause cancer and\/or reproductive harm. For more information go to www.p65warnings.ca.gov.\u003c\/small\u003e\u003c\/p\u003e","brand":"ARB","offers":[{"title":"Default Title","offer_id":48647949975744,"sku":"arbRD186","price":1299.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0525\/3188\/8320\/files\/0fdfa1de48ec6b63ca24a69556253704.jpg?v=1784678157","url":"https:\/\/overlandkitted.com\/products\/arb-airlocker-amc-model-20-3-08-up-s-n","provider":"Overland Kitted","version":"1.0","type":"link"}